Cita APA (7th ed.)

Kaplan, J. (1967). Mark Twain: A profile. Hill and Wang.

Cita Chicago (17th ed.)

Kaplan, Justin. Mark Twain: A Profile. New York: Hill and Wang, 1967.

Cita MLA (9th ed.)

Kaplan, Justin. Mark Twain: A Profile. Hill and Wang, 1967.