Bibunits

The bibunits package allows you to create a latex document with more than one bibliography. Import it via usepackage[<options>]{bibunits}.

Here is a comprehensive description of the package and its options.

To force bibtex to compile all generated .aux files for the separate libraries, you can download this script and run

latex
runbib.sh
latex
latex

on your .tex document.

Bibunits and Natbib

Note that if you want to use both bibunits and natbib, you must not use the hyperref package with option pagebackref