cam a22 u 4500 128615257 CHVBK 20200921121549.0 880212s1977 xxu | 10 |eng|d 0-12-193150-1 (OCoLC)636427668 (NEBIS)000267900 ETH-BIB ger ETH-BIB ETHICS-ISBD Water quality proceedings of an international forum; (Washington, September 22-24, 1975) ed.: Frederick Coulston, Emil Marcel Mrak New York a.o. Academic Press 1977 XIII, 295 p. tab. Ecotoxicology and environmental quality vol. 1 1 (NEBIS)000032195 126424942 WASSERQUALITÄT (WASSERAUFBEREITUNG UND -VERSORGUNG) ger (ETHUDK)000030225 ethudk Konferenzschrift Washington (DC) 1975 gnd-content u WASSERQUALITÄT (WASSERAUFBEREITUNG UND -VERSORGUNG) ger 628.1.006.83 nebis E1 u QUALITÉ DE L'EAU (APPROVISIONNEMENT EN EAU ET TRAITEMENT DE L'EAU) fre 628.1.006.83 nebis E1 u WATER QUALITY (WATER SUPPLY AND WATER TREATMENT) eng 628.1.006.83 nebis E1 Coulston Frederick International Water Quality Forum (1975 Washington, DC) (DE-588)247580-7 BK020800 XK020000 XK020000 Washington (DC) Kongress = Congrès 1975 NEBIS E16 E16 RH P 817056: 1 NEBIS 490 -- Ecotoxicology and environmental quality vol. 1 1 (NEBIS)000032195 126424942 NEBIS 700 1- Coulston Frederick NEBIS 711 2- International Water Quality Forum (1975 Washington, DC) (DE-588)247580-7