Sources and Nature of Water Quality problems in Asia and the pacific ESCAP text New York United Nations 1998 ing IX, 164p.;ill; 30 cm WATER RESOUCES?WATER QUALITY ASIA 26.174305555556 26.174305555556 INLIS000000000003540 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)