A Textbook of Environmental Science: Based on UGC Prescribed Core Module Syllabus For the Under Graduate Students of All Deciplines/ (Acc: D 1054) Based on UGC Prescribed Core Module Syllabus For the Under Graduate Students of All Deciplines - Joshi, P.C; Joshi, Namita (New Delhi: A.P.H. Publishing Corporation, 2011)