APA-referens

NULL. (1992). ENVIRONMENTAL AGRICULTURAL POLLUTION (I.). AKASHDEEP PUBLISHING HOUSE.

Chicago-stil citat

NULL. ENVIRONMENTAL AGRICULTURAL POLLUTION. I. INDIA: AKASHDEEP PUBLISHING HOUSE, 1992.

MLA-referens

NULL. ENVIRONMENTAL AGRICULTURAL POLLUTION. I. AKASHDEEP PUBLISHING HOUSE, 1992.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.