Citazione Stile APA (7a Edizione)

Engler, B. (1995). Personality theories: An introduction (4th ed.). Houghton Mifflin.

Citazione stile Chigago Style (17a edizione)

Engler, Barbara. Personality Theories: An Introduction. 4th ed. Boston: Houghton Mifflin, 1995.

Citatione MLA (9a ed.)

Engler, Barbara. Personality Theories: An Introduction. 4th ed. Houghton Mifflin, 1995.