TY - BOOK AU - Shrma, V.K. TI - Pryavaran ki chunotian: Samsayan avam smadhan SN - 9789381067215 U1 - HI 333.72 S33P PY - 2012/// CY - Delhi PB - Arya Pub. KW - ENVIRONMENTAL PROTECTION KW - CONSERVATION OF NATURAL RESOURCES ER -