APA (7 वां संस्करण) प्रशस्ति पत्र

Bjork, W. B., & Schraer, W. D. (1987). Biology: The study of life (2nd ed., Teacher's ed.). CEBCO : Allyn and Bacon.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Bjork, Warren B., और William D. Schraer. Biology: The Study of Life. 2nd ed., Teacher's ed. Newton, Mass.: CEBCO : Allyn and Bacon, 1987.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Bjork, Warren B., और William D. Schraer. Biology: The Study of Life. 2nd ed., Teacher's ed. CEBCO : Allyn and Bacon, 1987.