APA (7 वां संस्करण) प्रशस्ति पत्र

Crooks, R. L. (1991). Psychology: Science, behavior, and life (2nd ed.). Holt, Rinehart and Winston.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Crooks, Robert L. Psychology: Science, Behavior, and Life. 2nd ed. Chicago: Holt, Rinehart and Winston, 1991.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Crooks, Robert L. Psychology: Science, Behavior, and Life. 2nd ed. Holt, Rinehart and Winston, 1991.