Rana, S. V. S. (2007). Essentials of ecology and environmental science (3rd ed.). Prentice Hall of India.
Chicago-stil citatRana, S. V. S. Essentials of Ecology and Environmental Science. 3rd ed. New Delhi: Prentice Hall of India, 2007.
MLA-referensRana, S. V. S. Essentials of Ecology and Environmental Science. 3rd ed. Prentice Hall of India, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.