I'd like to have multiple authors like in
@book{three14,
Author = {Au and Ca and Ba},
Year = {2014}
}
appear as (Au, Ba, and Ca, 2014) (notice the sorting). But they will not be sorted and I could not find an option in the biblatex manual. Is there a solution to that?
\documentclass[oneside]{book}
\usepackage[
backend=biber,
style=authoryear
]{biblatex}
\addbibresource{bibliography.bib}
\begin{document}
\autocite{three14}
%\printbibliography
\end{document}

\DeclareSourceMapsorcery can do. Should the authors be in alphabetical order also in the bibliography? If so, just rewrite the fields. – egreg Oct 10 '14 at 22:16