Παραπομπή APA

Rana, S. V. S. (2007). Essentials of ecology and environmental science (3rd ed.). Prentice Hall of India.

Παραπομπή Chicago Style

Rana, S. V. S. Essentials of Ecology and Environmental Science. 3rd ed. New Delhi: Prentice Hall of India, 2007.

Παραπομπή MLA

Rana, S. V. S. Essentials of Ecology and Environmental Science. 3rd ed. Prentice Hall of India, 2007.