APA引文

Perkins, B., & Perkins, G. B. (1994). The American tradition in literature (8th ed.). New York: McGraw-Hill.

Trích dẫn kiểu Chicago

Perkins, Barbara, và George B. Perkins. The American Tradition in Literature. 8th ed. New York: McGraw-Hill, 1994.

MLA引文

Perkins, Barbara, và George B. Perkins. The American Tradition in Literature. 8th ed. New York: McGraw-Hill, 1994.

警告：這些引文格式不一定是100％准確.