Source book of alternative technologies for freshw - Sura Sopae 1998 - 223p cm. - "Its, Technical Publication Series; 8d. United Nations Environment Programme, Water Branch. South Pacific Applied Geoscience Commission" . Standard No.: 4803 Source: Reports Subjects--Topical Terms: Water SupplyIndustrial Economics Dewey Class. No.: "X9(D85)0gF.192.N9, N8/UN"