APA-referens

P D Sharma. (2013). Ecology and Environment (11th.). Meerut.

Chicago-stil citat

P D Sharma. Ecology and Environment. 11th. Meerut, 2013.

MLA-referens

P D Sharma. Ecology and Environment. 11th. Meerut, 2013.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.