Cita APA (7th ed.)

Smith, B. D., & Vetter, H. J. (1991). Theories of personality (2nd ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Smith, Barry D., i Harold J. Vetter. Theories of Personality. 2nd ed. New Jersey: Prentice-Hall, 1991.

Cita MLA (9th ed.)

Smith, Barry D., i Harold J. Vetter. Theories of Personality. 2nd ed. Prentice-Hall, 1991.