APA (7 वां संस्करण) प्रशस्ति पत्र

Primack, R. B. (2002). Essentials of conservation biology (Third edition.). Sinauer Associates.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Primack, Richard B. Essentials of Conservation Biology. Third edition. Sunderland, Mass: Sinauer Associates, 2002.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Primack, Richard B. Essentials of Conservation Biology. Third edition. Sinauer Associates, 2002.