International working group on project 1 door: International Working Group on Project 1: Ecological Effects of Increasing Human Activities on Tropical and Sub-tropical (1974 Rio de Janeiro), et al. Gepubliceerd in: (1974)
Expert panel on project 2 door: Expert panel on Project 2: Ecological Effects of Different Land Uses and Management Practices on Temperate and Mediterra (1974 Paris), et al. Gepubliceerd in: (1974)
Expert Panel on Project 5 door: Ecological Effects of Human Activities on the Value and Resources of Lakes, Marshes, Rivers, Deltas, Estuaries and Coast (1972 Paris), et al. Gepubliceerd in: (1972)