Cita APA (7th ed.)

Engler, B. (1985). Personality Theories: An introduction (2nd ed.). Houghton Mifflin Company.

Cita Chicago (17th ed.)

Engler, Barbara. Personality Theories: An Introduction. 2nd ed. Boston: Houghton Mifflin Company, 1985.

Cita MLA (9th ed.)

Engler, Barbara. Personality Theories: An Introduction. 2nd ed. Houghton Mifflin Company, 1985.