APA-viite

Raj, G., & Trivedi, P. R. (1992). Encyclopaedia of Environmental sciences.

Chicago-tyylinen lähdeviittaus

Raj, Gurdeep, ja P R. Trivedi. Encyclopaedia of Environmental Sciences. New Delhi, Akashdeep, 1992.

MLA-viite

Raj, Gurdeep, ja P R. Trivedi. Encyclopaedia of Environmental Sciences. 1992.