I am using BibLaTeX and Babel (catalan) and I get a weird error in the bibliography:the quotation marks are replaced by question marks. If a deactivate Babel everything works.
Babel:
Code:
\documentclass[12pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{csquotes}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{setspace}
\usepackage[backend=bibtex,sorting=none]{biblatex}
\usepackage{graphicx}
\usepackage[margin=2cm]{caption}
\usepackage[catalan]{babel}
\usepackage{float}
\usepackage{wasysym}
\usepackage{pifont}
\onehalfspacing
\usepackage[top=0.79in, bottom=0.79in, left=1.18in, right=0.79in]{geometry}
\renewcommand{\thefootnote}{\arabic{footnote}}
\addbibresource{bib.bib}
\begin{document}
[...]
\printbibliography
\end{document}
Result:

Without Babel:
Code:
\documentclass[12pt,a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{csquotes}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{setspace}
\usepackage[backend=bibtex,sorting=none]{biblatex}
\usepackage{graphicx}
\usepackage[margin=2cm]{caption}
%\usepackage[catalan]{babel}
\usepackage{float}
\usepackage{wasysym}
\usepackage{pifont}
\onehalfspacing
\usepackage[top=0.79in, bottom=0.79in, left=1.18in, right=0.79in]{geometry}
\renewcommand{\thefootnote}{\arabic{footnote}}
\addbibresource{bib.bib}
\begin{document}
[...]
\printbibliography
\end{document}
Result:


catalanstyle, see here how to do that. Having read Wikipedia on the subject though, If you agree with the usage there, go with\DeclareQuoteAlias{greek}{catalan}. – moewe Feb 14 '15 at 10:52