TY  - BOOK
ED  - United Nations. 
TI  - Criteria for and approaches to water quality management in developin g countries / 
SN  - 9211043573
PY  - 1991///
CY  - New York  : 
PB  - United Nations, 
KW  - Water quality management
KW  - Developing countries
N1  -  United Nations publication sales no. E.91.II.A.1"--Verso t.p;  Includes bibliography
ER  -