Cita APA (7a ed.)

Ludwig, E., Cedar, P., & Eden, P. (1962). Abraham Lincoln (2nd print.). A Premier Book.

Cita Chicago Style (17a ed.)

Ludwig, Emil, Paul Cedar, y Paul Eden. Abraham Lincoln. 2nd print. Greenwich: A Premier Book, 1962.

Cita MLA (9a ed.)

Ludwig, Emil, et al. Abraham Lincoln. 2nd print. A Premier Book, 1962.