APA引文

Steinbeck, J. (1994). Once there was a war. Penguin Books.

Chicago Edition Citation

Steinbeck, John. Once There Was a War. London: Penguin Books, 1994.

MLA引文

Steinbeck, John. Once There Was a War. Penguin Books, 1994.

警告：这些引文格式不一定是100％准确.