[header] How to cite primary sources [title] Recognize different citation styles. [step] Depending on the discipline or preferred tastes, there are different styles of citations for published primary sources such as books, memoirs, and reports. However, these styles contain the same basic information and only vary in the format in which you write the citation. 
The two primary forms of citing published primary sources are : [substeps] Chicago, used mostly in history and other humanities fields. This is also sometimes called " turabian " style.