Cita APA (7th ed.)

Penn, A. A. (1919). Smilin' through. M. Witmark.

Cita Chicago (17th ed.)

Penn, Arthur A. Smilin' Through. New York: M. Witmark, 1919.

Cita MLA (9th ed.)

Penn, Arthur A. Smilin' Through. M. Witmark, 1919.