Tohutoro APA (7th ed.)
Kumar, H. (1998). Environmental pollution and waste management. M.D..
Tohutoru Kātū Chicago (17th ed.)
Kumar, H.D. Environmental Pollution and Waste Management. New Delhi: M.D., 1998.
Tohutoro MLA (9th ed.)
Kumar, H.D. Environmental Pollution and Waste Management. M.D., 1998.
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