APA-referens

Murthy, D. (2004). Environmental awareness and protection: A basic on environmental studies. Deep & Deep.

Chicago-stil citat

Murthy, D.B.N. Environmental Awareness and Protection: A Basic on Environmental Studies. New Delhi: Deep & Deep, 2004.

MLA-referens

Murthy, D.B.N. Environmental Awareness and Protection: A Basic on Environmental Studies. Deep & Deep, 2004.