Switching languages in bibliography with biblatex

Question

I would like to have a bibliography with both Cyrillic and Latin and the main document language being English. How can I make biblatex to automatically switch between languages? (without using XeTeX as suggested by some) The minimal example returns an error if the main language is English. However, with the main language being Russian the document works.

\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[russian,english]{babel}

\usepackage[backend = biber,babel=other]{biblatex}
\usepackage{csquotes}
\addbibresource{library.bib}

\begin{document}
%\selectlanguage{russian} %if the main document language is Russian the bibliography is compiled without any problem.
This is a test. \parencite{Bara2006,Baranov2001}

\printbibliography

\end{document}

The .bib entries are

@book{Bara2006,
address = {New York},
author = {Bara, Judith},
publisher = {Routledge},
title = {{English Citation entry}},
year = {2006}
}

@book{Baranov2001,
address = {Санкт-Петербугр},
author = {Баранов, Николай А},
title = {{Эволюция взглядов}},
year = {2001}
}

Answer 1

You must add hyphenation and language keys to each of your bibentries:

\documentclass{article}
\usepackage{filecontents}
\usepackage[utf8]{inputenc}
\usepackage[russian,english]{babel}

\begin{filecontents*}{library.bib}
@book{Bara2006,
  address = {New York},
  author = {Bara, Judith},
  publisher = {Routledge},
  title = {{English Citation entry}},
  year = {2006},
  language={english},
  hyphenation={english}
}
@book{Baranov2001,
  address = {Санкт-Петербугр},
  author = {Баранов, Николай А},
  title = {{Эволюция взглядов}},
  year = {2001},
  language={russian},
  hyphenation={russian}
}
\end{filecontents*}

\usepackage[bibencoding=auto,backend=biber,babel=other]{biblatex}
\usepackage{csquotes}
\addbibresource{library.bib}

\begin{document}
This is a test. \parencite{Bara2006,Baranov2001}
\newpage
\printbibliography
\end{document}