Cita APA (7th ed.)

Tiffin, J., Knight, F. B., & Asher, E. J. (1946). The psychology of normal people. Heath.

Cita Chicago (17th ed.)

Tiffin, Joseph, Frederick B. Knight, i Easton Jackson Asher. The Psychology of Normal People. Boston: Heath, 1946.

Cita MLA (9th ed.)

Tiffin, Joseph, et al. The Psychology of Normal People. Heath, 1946.