Report on the Working Conference on Birds of Prey and Owls, Caen, Calvados, Normandy, Friday, 10 April - Sunday, 12 April 1964 1964
UNEP and protected areas : review of joint activities carried out by UNEP and FAO, IUCN and the Unesco MAB Programme, 1973-1982 1982
World directory of environmental organizations : a handbook of national and international organizations and programs-government and non-governmental-concerned with protecting the earth's resources 1989
National parks, conservation and development : the role of protected areas in sustaining society : proceedings of the World Congress on National Parks, Bali, Indonesia, 11-22 October 1982 1984
