APA-referens

Trivedi, P. R. (2000). Encyclopaedia of Environment, pollution ,Planning and Conservation Vol. 5. A.P.H.Publishing Corporation.

Chicago-stil citat

Trivedi, P R. Encyclopaedia of Environment, Pollution ,Planning and Conservation Vol. 5. New Delhi: A.P.H.Publishing Corporation, 2000.

MLA-referens

Trivedi, P R. Encyclopaedia of Environment, Pollution ,Planning and Conservation Vol. 5. A.P.H.Publishing Corporation, 2000.