To find books that contain primary source material, try adding the following to your searches: correspondence; literary collections; personal narratives; pictorial works; songs and music; sources; diary or diaries
A union catalog, it enables you to search the holdings of libraries across the country and internationally.
Catalogs generally contain: books, journal titles, sound recordings, movies, newspapers and so on.
This is digital preservation repository and access platform. It provides long-term preservation and access services for public domain and in copyright content from a variety of sources, including Google, the Internet Archive, Microsoft, and in-house partner institution initiatives, including UCSC.