To identify books that are primary sources:
1) Look for books written by people who were involved in the event or activity you are researching. (Tip: When you look at secondary sources, write down the names of people and then look for them as authors.)
2) Books that have been assigned subjects with the subheadings in the list below might be primary sources. Not all books that include primary sources will include one of these words or phrases in a subject heading.
Washington, George, 1732-1799 -- Correspondence
Pioneers -- Pennsylvania -- Correspondence
Boston (Mass.) -- History -- Sources
Society of Friends -- History -- 18th century -- Sources
United States -- History -- Queen Anne's War, 1702-1713 -- Personal narratives