Cita APA (7th ed.)

Grebstein, S. N. (1962). Sinclair Lewis. Twayne Publishers.

Cita Chicago (17th ed.)

Grebstein, Sheldon Norman. Sinclair Lewis. Boston: Twayne Publishers, 1962.

Cita MLA (9th ed.)

Grebstein, Sheldon Norman. Sinclair Lewis. Twayne Publishers, 1962.