Tohutoro APA (7th ed.)
Joseph, B. (2005). Environmental studies. Tata McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)
Joseph, Benny. Environmental Studies. New Delhi: Tata McGraw-Hill, 2005.
Tohutoro MLA (9th ed.)
Joseph, Benny. Environmental Studies. Tata McGraw-Hill, 2005.
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