Cita APA (7a ed.)

Maddi, S. R., & Costa, P. T. (1972). Humanism in personology: Allport, Maslow, and Murray. Aldine-Atherton, Inc.

Cita Chicago Style (17a ed.)

Maddi, Salvatore R., y Paul T. Costa. Humanism in Personology: Allport, Maslow, and Murray. Chicago ; New York: Aldine-Atherton, Inc, 1972.

Cita MLA (9a ed.)

Maddi, Salvatore R., y Paul T. Costa. Humanism in Personology: Allport, Maslow, and Murray. Aldine-Atherton, Inc, 1972.