Kumar,Arvind, & Nehar,Shamshun. (2007). Environmental protection. Daya Publishing House.
Chicago Style aipamenaKumar,Arvind, and Nehar,Shamshun. Environmental Protection. New Delhi: Daya Publishing House, 2007.
MLA aipamenaKumar,Arvind, and Nehar,Shamshun. Environmental Protection. Daya Publishing House, 2007.
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