Gaya APA
Kagan, J., Segal, J. (1988).
Psychology : An Introduction 6'th Ed. (6).
San Diego:
Harcourt Brace Jovanovich, Inc.
Gaya MLA
Kagan, Jerome., Segal, Julius.
"Psychology : An Introduction 6'th Ed.".
6
San Diego:
Harcourt Brace Jovanovich, Inc,
1988.
Text.