00618nam a2200169Ia 4500 190328s9999||||xx |||||||||||||| ||und|| 0-393-30040-4 NITIL NITIL 21st 574.52606 E19D Echkolm, Eric P Down to earth environment and human needs Eric P Echkolm New Delhi East-west Press 1991 xv,238p A report prepared in commemoration of the tenth anniversary of the historic Stockholm conference the human environment Human ecology; Social ecology; Pollution-Enviromental aspects BKS 31084 31084 0 0 DDC 0 0 NITIL NITIL 2019-04-03 0 574.52606 E19D 130224 2019-04-03 00:00:00 2019-04-03 BKS