Cita APA (7a ed.)

Scientific American, Held, R., & Richards, W. (1972). Perception: Mechanisms and models. : W.H. Freeman and Company.

Cita Chicago Style (17a ed.)

Scientific American, Richard Held, y Whitman Richards. Perception: Mechanisms and Models. San Francisco: : W.H. Freeman and Company, 1972.

Cita MLA (9a ed.)

Scientific American, et al. Perception: Mechanisms and Models. : W.H. Freeman and Company, 1972.