APA (7th ed.) Citation

Charnwood, G. R. B. (1954). Abraham Lincoln (4th printing.). Pocket Books.

Chicago Style (17th ed.) Citation

Charnwood, Godfrey Rathbone Benson. Abraham Lincoln. 4th printing. New York: Pocket Books, 1954.

MLA (9th ed.) Citation

Charnwood, Godfrey Rathbone Benson. Abraham Lincoln. 4th printing. Pocket Books, 1954.