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1Surveillance of drinking--water quality; (information and guidelines for planning, organizing, and operating programmes at the national or regional level in the developing countrie... Surveillance of drinking--water quality; (information and guidelines for planning, organizing, and operating programmes at the national or regional level in the developing countrie...by McJunkin, F.E., World Health Organization, Geneva (Switzerland) eng, WHO Meeting on the Establishment of Guidelines for Surveillance of Drinking-Water Quality eng 18 Feb 1975 Geneva (Switzerland)
Published 1976Texto bibliotecaFAO IT
