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Water quality surveys; a guide for the collection and interpretation of water quality data - Prepared by the IHD/WHO Working Group on Quality of Water Water quality surveys; a guide for the collection and interpretation of water quality data - Prepared by the IHD/WHO Working Group on Quality of Water

by Gilbrich, W.H., International Hydrological Decade, 75 - Paris (France) eng, Helmer, R., Gale, R.M., Siddiqi, R.H., World Health Organization, Geneva (Switzerland) eng
Published 1978

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