# punctuation at end of titles in biblatex references

How do I remove the period from the end of a book title, and put a comma at the end of an article title? This is the sort of thing I am working with:

\documentclass{article}
\usepackage[style=authoryear]{biblatex}
\begin{filecontents}{\jobname.bib}
@book{mhra2013,
Author = {{Modern Humanities Research Association}},
Publisher = {Modern Humanities Research Association},
Title = {{MHRA} style guide: A handbook for authors and editors},
Year = {2013},
}

@article{wage2012,
Author = {Eric-Jan Wagenmakers and Ruud Wetzels and Denny Borsboom and Han L. J. van der Maas, and Rogier A. Kievit},
Journal = {Perspectives on psychological science},
Number = {6},
Pages = {632-638},
Title = {An agenda for purely confirmatory research},
Volume = {7},
Year = {2012},
}
\end{filecontents}
\begin{document}
\cite{mhra2013} \cite{wage2012}
\printbibliography
\end{document}


This is what it currently produces; the bits I want to change are highlighted.

• That's the standard \newunitpunct, which is also used after the year. You can change it, but it means that if you want to keep the period after the year you have to adapt every driver. Is is worth your time? – Ulrike Fischer Jul 21 '16 at 14:34
• I need the period after the year as I am trying to follow MHRA style. (Which doesn't have parentheses around the year, but that's another issue I think.) – Gareth Walker Jul 21 '16 at 15:18

\documentclass{article}
\usepackage[style=authoryear]{biblatex}
\begin{filecontents}{\jobname.bib}
@book{mhra2013,
Author = {{Modern Humanities Research Association}},
Publisher = {Modern Humanities Research Association},
Title = {{MHRA} style guide: A handbook for authors and editors},
Year = {2013},
}

@article{wage2012,
Author = {Eric-Jan Wagenmakers and Ruud Wetzels and Denny Borsboom and Han L. J. van der Maas, and Rogier A. Kievit},
Journal = {Perspectives on psychological science},
Number = {6},
Pages = {632-638},
Title = {An agenda for purely confirmatory research},
Volume = {7},
Year = {2012},
}
\end{filecontents}