People, parks and wildlife : guidelines for public participation in wildlife conservation : case studies from Kenya 1988 Berger, Dhyani J. |
World directory of collections of cultures of microorganisms 1986 Staines, Jo E. | McGowan, Vicki F. | Skerman, V. B. D. |
WICEM II : Second World Conference on Environmental Management, 10-12 April 1991, Rotterdam : conference report and background papers 1991 Willums, Jan-Olaf | Golüke, Ulrich |
Environmental hazards of war : releasing dangerous forces in an industrialized world 1990 Westing, Arthur H. |
International strategy for action in the field of environmental education and training for the 1990s 1988