000 006150000a22001930004500
001 13414
090 _a13414
100 _a20190520 frey50
101 _aeng
102 _aFR|Paris
200 0 1 _aWater quality surveys : a guide for the collection and interpretation of water quality data
_fprepared by IHD-WHO Working Group on the Quality of Water
210 _aParis : UNESCO ; WHO
_c1978
215 _a350 p.
_cil.
_d24 cm
225 _aStudies and reports in hydrology
317 _aIPIMAR
320 _aBibliografia
686 _aD 72
686 _aD 75
710 _aIHD-WHO. Working Group on the Quality of Water