Rawat , Manoj Jal pradushaṇa : saṃrakshaṇa evaṃ susthira vikas / by Manoj Rawat - New Delhi : Shivank Prakasan, 2017. - 219 p. ill. ; 22 c.m. ISBN: 9789383980550 Subjects--Topical Terms: Enviromental Engineering Dewey Class. No.: 363.7394 / RAW/J