# Problems with biblatex and chicago: Parentheses around issue and duplicated year

I have some problems with creating a bibliography adhering entirely to the Chicago style with biblatex. Namely, the issue of journal articles does not appear in parentheses but after the volume separated with a dot (for example "8.1" instead of "8(1)"). Also for every @Misc or @Book entry the year seems to appear twice.

This would be my code:

\documentclass{report}
\usepackage[style=authoryear,
citestyle=chicago-authordate,
doi=false,
backend=biber,
maxnames=2,
ibidtracker=constrict]{biblatex}
\usepackage{xpatch}

\begin{document}

\printbibliography

\end{document}


I know that I could use biblatex-chicago instead, but unfortunately I do need some features of biblatex for example to divide the bibliography into different parts.

Did I make any mistake in the package specification or is there a way to fix this manually?

• Your code can not be used for tests as no bib entries are provided. If possible use examples from biblatex-examples.bib. – Ulrike Fischer Apr 24 '19 at 9:53
• Your bibliography style is not set to chicago-authordate but to authoryear ... I get an error about conflicting options with this anyway ... I also think you are confused about the way biblatex-chicago works: it is a biblatex format, albeit a slightly special one: and in fact I think you are loading it, albeit not in the special way it prefers. An alternative chicago style, more recently developed is windy-city. – Paul Stanley Apr 24 '19 at 9:57
• And beside of the conflicting-options error there is also a typo in \printbibliography. Test your code before asking a question. – Ulrike Fischer Apr 24 '19 at 9:59
• Note that biblatex-chicago should usually be called with its wrapper package \usepackage[authordate]{biblatex-chicago} instead of \usepackage[style=chicago-authordate]{biblatex}. Note further that style=authoryear, citestyle=chicago-authordate, means that you are essentially not using Chicago style at all. I am also not sure if using a non-Chicago bibliography style with a Chicago citation style is supported. It should be possible to get split bibliographies and similar things also with biblatex-chicago and its wrapper package. – moewe Apr 24 '19 at 9:59
• @moewe @Paul Stanley I did get confused with how to call the style and, in fact setting style=chicago-authordate solves the whole problem. I might keep it like that or try calling it with \usepackage[authordate]{biblatex-chicago}. In any case, thank you! – Nilsi Apr 24 '19 at 10:08

The styles of the biblatex-chicago package are a bit special in that it is recommended to load them via the special wrapper package biblatex-chicago and not via biblatex and its style option.

Furthermore, in the question you only load biblatex-chicago's authordate style for citations, the bibliography is still in the standard authoryear style. I can not recommend mixing non-biblatex-chicago and biblatex-chicago styles.

Since biblatex-chicago is for the most part just a thin wrapper around biblatex that sets relevant options, you should be able to do most things you can do with standard biblatex also with biblatex-chicago. (There is a small difference in the option handling of some options. For example, biblatex-chicago's implementation of the natbib compatibility option does not accept a value, but biblatex's version does.)

I suggest you load biblatex-chicago as

\usepackage[authordate,
backend=biber,
]{biblatex-chicago}


You can add additional options when you have verified that you need them.

\documentclass[british]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{csquotes}

\usepackage[authordate,
backend=biber,
]{biblatex-chicago}

\begin{document}
\autocite{sigfridsson,nussbaum}
\printbibliography
\end{document}


In the comments Paul Stanley mentions a more recent alternative to biblatex-chicago: windycity. There are small differences in the output between the two packages, but the general feeling is the same.

biblatex-chicago's authordate style corresponds to windycity's reflist option.

\documentclass[british]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{babel}
\usepackage{csquotes}

\usepackage[style=windycity,
reflist,
autocite=inline,
backend=biber,
]{biblatex}


• Thanks again! Loading biblatex-chicago works like a charm now, I'm not entirely sure why I didn't use it before. I am wondering however what the advantage of \usepackage[authordate]{biblatex-chicago} over \usepackage[style=chicago-authordate,citestyle=chicago-authordate]{biblatex} are. The differences in the output seem to be very small. – Nilsi Apr 24 '19 at 10:45
• @Nilsi If you have a look at biblatex-chicago.sty you'll find that \usepackage[authordate]{biblatex-chicago} does an equivalent of \usepackage[style=chicago-authordate]{biblatex} and then issues a plethora of options in \ExecuteBibliographyOptions. It is my understanding that some of these settings are required to conform to CMoS guidelines. The package also issues language mappings. Furthermore the package changes a few list and line breaking parameters for the bibliography. ... – moewe Apr 24 '19 at 10:49
• Yes, some of these things may concern only details and the overall difference is probably fairly small for most cases, but it is my understanding that you can only get the full CMoS experience easily and as intended by the author if you load biblatex-chicago via the wrapper package. The absence of language mappings if you laod the style manually may mean that some things don't quite work as intended. In any case \usepackage[style=chicago-authordate,citestyle=chicago-authordate]{biblatex} is redundant and I would reduce it to the equivalent \usepackage[style=chicago-authordate]{biblatex}. – moewe Apr 24 '19 at 10:52