01129nam a2200325 a 4500 3940188 BD-DhUL 20140901122319.0 140831s1991 ke ab b 000 0 eng 92981260 DLC DLC DLC BD-DhUL TD425 .W49 1991 363.7394 20 UNF Wheal, Caroline. Freshwater pollution / [text, Caroline Wheal]. Nairobi : UNEP, 1991. 36 p. : ill., maps ; 26 cm. US$ 10.00 UNEP/GEMS environment library ; no. 6 Cover title. "Based on Global freshwater quality (Blackwell, 1990) and other sources"--T.p. verso. Includes bibliographical references (p. 35-36). Water Pollution. Water-supply. United Nations Environment Programme. Global freshwater quality. 7 cbc orignew 3 ncip 19 y-gencatlg ddc BK wn02 12-02-92; wn02/wn04 12-23-92 to LC; cj08 05-19-93;; jg00 06-02-93; jg03 10-08-94; jg07 10-11-94 6908 6908 0 0 ddc 0 363_739400000000000_UNF 0 NFIC 11943 DUSL DUSL GEN 2003-05-25 Purchased 363.7394 UNF 406277 2014-09-01 2014-09-01 BK