APA (7 वां संस्करण) प्रशस्ति पत्र

Cook, R. C., & Lecht, J. (1968). People!: An introduction to the study of population. Columbia Books.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Cook, Robert C., और Jane Lecht. People!: An Introduction to the Study of Population. Washington: Columbia Books, 1968.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Cook, Robert C., और Jane Lecht. People!: An Introduction to the Study of Population. Columbia Books, 1968.