00523nam a22002057a 4500 21778 21778 OSt 190814b ||||| |||| 00| 0 eng d 9788176672719 363.7 S48P Singh, Indranath. Pariyavaran-Vimarsh 1st ed. Dilhi Bhavana Prakashan 2012 xvii,576p. Social Sciences Socials Problems and Services Environmental Problems Singh, Brajesh. ddc BK 0 0 ddc 0 0 RAU RAU 2016-03-31 Sharma Book Company 800.00 0 363.7 S48P 71165 2019-08-14 2019-08-14 BK