You can find primary sources in the library book collection in either collections (frequently called anthologies) or included within secondary source books as illustrations, appendices, or excerpts (quotations from a larger source.)
Quoted pieces from a larger document are not ideal primary sources, in the event you find a 'piece' of a larger source item in a book, whenever possible go to the original document. Find the information in the footnote or bibliography. If you need help locating the item, of course, ask for help!
The search video below demonstrates looking for a diary which is one form of primary source. For other types of material that you can use in your search strategy, refer to Primary Source Types for a list of ideas.
Example Primary Source Search-Catalog
This demonstrates a search with limiting to ebook format. We do have hard copy primary source material as well, but if you are no coming on campus...
If you do see a print work that you want, request the item and we will get you an ebook copy if one is available. Be sure to allow plenty of time (2 weeks) for processing. The demonstration is using the California Gold Rush, but the process is the same for your topic.