APA Citatie

Kagan, J., & Segal, J. H. (2004). Kagan and Segal's psychology: An introduction (9th ed.). Thomson Learning.

Chicago Style citaat

Kagan, Jerome, en Julius Havemann Segal. Kagan and Segal's Psychology: An Introduction. 9th ed. USA: Thomson Learning, 2004.

MLA citatie

Kagan, Jerome, en Julius Havemann Segal. Kagan and Segal's Psychology: An Introduction. 9th ed. Thomson Learning, 2004.