000 005410000a22001690004500
003 PH-MaWHO
005 20241108112100.0
110 _aInternational Hydrological Decade-WHO Working Group on Quality of Water.
_9642720
245 _aWater quality surveys : a guide for the collection and interpretation of water quality data.
264 _aParis :
_bUnesco,
_c1978.
490 _a(Studies and reports in hydrology ; no. 23)
300 _a350p.
090 _aSEZA 1978
041 _aeng
650 _aWater
_xAnalysis
_9359996
942 _cMONO
999 _c541
_d541