Cita APA (7a ed.)

Wittig, A. F., & Williams, G. (1984). Psychology: An introduction. McGraw-Hill Book Company.

Cita Chicago Style (17a ed.)

Wittig, Arno F., y Gurney Williams. Psychology: An Introduction. New York: McGraw-Hill Book Company, 1984.

Cita MLA (9a ed.)

Wittig, Arno F., y Gurney Williams. Psychology: An Introduction. McGraw-Hill Book Company, 1984.