If you're looking for scholarly studies of Chinese history, literature or culture, start with the library catalog (Cameo) and databases such as MLA (language & literature), LLBA (linguistics), Historical Abstracts, Google Scholar, full-text journal collections such as JSTOR and Project Muse, or reference works such as Credo Reference, Literature Resource Center or Oxford Reference Online. The most comprehensive index to use for citations to books and articles is the Bibliography of Asian Studies.
See also the East Asian History guide by CMU History liaison librarian Sue Collins.
Be sure to consult General Tips for Finding Resources in Different Languages on the Modern Languages guide home page.
The East Asian Library at the University of Pittsburgh is a great source for collections and services.
Many primary sources on Chinese literature and culture can be found at websites such as these: