Deismireacht APA

Kumar,Aravind. (2003). Environmental challenges of the 21st century. A.P.H Publishing corporation.

Chicago Edition Citation

Kumar,Aravind. Environmental Challenges of the 21st Century. New Delhi: A.P.H Publishing corporation, 2003.

Deismireacht MLA

Kumar,Aravind. Environmental Challenges of the 21st Century. A.P.H Publishing corporation, 2003.

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