Cita APA (7a ed.)

Charnwood, G. R. B. (1950). Abraham Lincoln (14th printing.). Pocket Books.

Cita Chicago Style (17a ed.)

Charnwood, Godfrey Rathbone Benson. Abraham Lincoln. 14th printing. New York: Pocket Books, 1950.

Cita MLA (9a ed.)

Charnwood, Godfrey Rathbone Benson. Abraham Lincoln. 14th printing. Pocket Books, 1950.