APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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