APA

Charnwood J. R. B., . (1968). Abraham Lincoln. New York: Washington Square Press.

Chicago

Charnwood John Roby Benson, . 1968. Abraham Lincoln. New York: Washington Square Press.

Harvard

Charnwood J. R. B., . (1968). Abraham Lincoln. New York: Washington Square Press.

MLA

Charnwood John Roby Benson, . Abraham Lincoln. New York: Washington Square Press. 1968.