I suggest you proceed as follows:
Find the file authordate3.bst
in your TeX distribution. Make a copy of this file and call the copy, say, authordate3-mod.bst
. (Do not modify an original, unrenamed file of the TeX distribution directly.)
Open the file authordate3-mod.bst
in a text editor. The program you use to edit your tex files will do fine.
Inside the file authordate3-mod.bst
, locate all three instances of the string {\em et~al.}
. (In my copy of the file, they occur on lines 268, 1038, and 1042.)
Change all three instances of this string to et~al
. Basically, you're removing \em
and the trailing "period" (aka "full stop").
Save the file authordate3-mod.bst
either in the directory where your main tex file is located or in a directory that's searched by BibTeX. If you choose the second option, be sure to update the filename database of your TeX distribution suitably. If you don't understand the preceding sentence, you should probably choose the first option...
In your main tex file, change the instruction \bibliographystyle{authordate3}
to \bibliographystyle{authordate3-mod}
.
In the preamble, after loading the natbib
package, issue the directive \setcitestyle{aysep={}}
. This serves to eliminate the comma between author(s) and year in citation call-outs generated by \citep
.
Run a complete recompile cycle (LaTeX, BibTeX, and LaTeX twice more) to fully propagate all changes.
Happy BibTeXing!
A full MWE (mininal working example):
\documentclass{article}
\usepackage{natbib}
\setcitestyle{aysep={}}
\bibliographystyle{authordate3-mod}
\begin{filecontents}[overwrite]{mybib.bib}
@misc{abc:3001,author="A and B and C",title="Thoughts",year=3001}
\end{filecontents}
\begin{document}
\citep{abc:3001}
\bibliography{mybib}
\end{document}
authordate1-4
bibliography styles are designed to be used withnatbib
. They seem to require theauthordate1-4
package. Is usingbiblatex
a possibility?authordate
package, but theauthoryear3
bib style seems to work just fine when used together withnatbib
.natbib
package: "[natbib
] is compatible with the standard bibliographic style files, such asplain.bst
, as well as with those forharvard
,apalike
,chicago
,astron
,authordate
, ..."