Cita APA (7th ed.)

Kagan, J., & Segal, J. (1988). Psychology: An introduction (6th ed.). Harcourt Brace Jovanovich.

Cita Chicago (17th ed.)

Kagan, Jerome, i Julius Segal. Psychology: An Introduction. 6th ed. San Diego: Harcourt Brace Jovanovich, 1988.

Cita MLA (9th ed.)

Kagan, Jerome, i Julius Segal. Psychology: An Introduction. 6th ed. Harcourt Brace Jovanovich, 1988.