This is a good place to begin your research on the French Revolution and the Napoleonic era. Many of the recommended books and sites include non-English language works. There are English translations available for many of them. Searching by the author's name is probably the best way to find a translation of his work. Remember that the title may not be translated verbatim or the text may be abridged in translation. If no translation is available, a good French-English, Russian, Spanish or German-English dictionary may help you make sense of the text.
The Center for Research Libraries (CRL) is an excellent resource for books, periodicals, manuscripts, newspapers, and archival materials in print, microfilm, and digital formats. FSU belongs to this international consortium of university, college, and independent research libraries, which allows FSU patrons to borrow CRL materials via interlibrary loan for extended periods.
One way to identify key collections is through CRL Topic Guides. See, for example, the Topic Guide for France, which highlights a number of Early Modern resources, and resources on the Revolutionary Period.