Cita APA (7th ed.)

Liebert, R. M. (1993). Personality: Strategies and issues (7th.ed.). Brooks / Cole.

Cita Chicago (17th ed.)

Liebert, Robert M. Personality: Strategies and Issues. 7th.ed. California: Brooks / Cole, 1993.

Cita MLA (9th ed.)

Liebert, Robert M. Personality: Strategies and Issues. 7th.ed. Brooks / Cole, 1993.