APA引文

Steinbeck, J. (2006). The Grapes of wrath. New York: Penguin Books.

Trích dẫn kiểu Chicago

Steinbeck, John. The Grapes of Wrath. New York: Penguin Books, 2006.

MLA引文

Steinbeck, John. The Grapes of Wrath. New York: Penguin Books, 2006.

警告：这些引文格式不一定是100％准确.