Cita APA (7th ed.)

LEFRANCOIS, G. R. (1984). The lifespan. Wadsworth Publishing.

Cita Chicago (17th ed.)

LEFRANCOIS, Guy R. The Lifespan. Belmont: Wadsworth Publishing, 1984.

Cita MLA (9th ed.)

LEFRANCOIS, Guy R. The Lifespan. Wadsworth Publishing, 1984.