APA-referens

Singh, G., & Inderjeet Kaur Sethi. (1992). Topics and terms in enviornmental science. Commonwealth.

Chicago-stil citat

Singh, Gurcharan, och Inderjeet Kaur Sethi. Topics and Terms in Enviornmental Science. New Delhi: Commonwealth, 1992.

MLA-referens

Singh, Gurcharan, och Inderjeet Kaur Sethi. Topics and Terms in Enviornmental Science. Commonwealth, 1992.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.