APA引文

Cowan, T. (1994). Timelines of african american history: 500 years of black achievement. A roundtable press.

芝加哥风格引文

Cowan, Tom. Timelines of African American History: 500 Years of Black Achievement. New York: A roundtable press, 1994.

MLA引文

Cowan, Tom. Timelines of African American History: 500 Years of Black Achievement. A roundtable press, 1994.