Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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