Cita APA (7a ed.)

Guptill, A. L. (1946). Norman Rockwell illustrator. Watson Gupyill.

Cita Chicago Style (17a ed.)

Guptill, Arthur Leighton. Norman Rockwell Illustrator. New York: Watson Gupyill, 1946.

Cita MLA (9a ed.)

Guptill, Arthur Leighton. Norman Rockwell Illustrator. Watson Gupyill, 1946.