APA (7th ed.) Citation

Delbanco, A. (1993). The Portable Abraham Lincoln. Penguin Books.

Chicago Style (17th ed.) Citation

Delbanco, Andrew. The Portable Abraham Lincoln. New York: Penguin Books, 1993.

MLA (9th ed.) Citation

Delbanco, Andrew. The Portable Abraham Lincoln. Penguin Books, 1993.

Warning: These citations may not always be 100% accurate.