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United Nations Environment Programme ,  GRID-Arendal ,  [Feasibility Study for the Establishment of a UNEP/GRID-Compatible Environmental Information Network in Hungary] ,  Feasibility Study for the Establishment of a UNEP/GRID-Compatible Environmental Information Network in Hungary

United Nations Environment Programme ,  Food and Agriculture Organization of the United Nations ,  World Health Organization ,  [Joint FAO/WHO Food and Animal Feed Contamination Monitoring Programme: Summary of Data Received from Collaborating Centres 1977 to 1980 Part A Countries] ,  Joint FAO/WHO Food and Animal Feed Contamination Monitoring Programme: Summary of Data Received from Collaborating Centres 1977 to 1980 Part A Countries

United Nations Environment Programme ,  International Lake Environment Committee ,  [Guidelines of Lake Management Volume 7: Biomanipulation in Lakes and Reservoirs Management] ,  Guidelines of Lake Management Volume 7: Biomanipulation in Lakes and Reservoirs Management

United Nations Environment Programme ,  International Lake Environment Committee ,  [Guidelines of Lake Management Volume 3: Lake Shore Management] ,  Guidelines of Lake Management Volume 3: Lake Shore Management