APA استشهاد

Primack, R. B. (2002). Essentials of conservation biology (3rd ed.). Sinauer Associates.

استشهاد بنمط شيكاغو

Primack, Richard B. Essentials of Conservation Biology. 3rd ed. Sundarland: Sinauer Associates, 2002.

MLA استشهاد

Primack, Richard B. Essentials of Conservation Biology. 3rd ed. Sinauer Associates, 2002.