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Author/Creator
- IUCN Commission on National Parks and Protected Areas3
- Thorsell, J. W.3
- World Congress on National Parks and Protected Areas (4th : 1992 : Caracas, Venezuela)3
- World Heritage Committee3
- Dene Cultural Institute (Yellowknife, N.W.T.)2
- International Development Research Centre (Canada)2
- Johnson, Martha (Martha Charlton)2
- National Audubon Society2
- Schofield, Edmund A.2
- Sierra Club2
- Wilderness Conference (14th : 1975 : New York)2
- APO Seminar on Resource Conservation and Environmental Protection (1998 : Tokyo, Japan)1
- Asia-Pacific Forum on Environmental Funds (1st : 1997 : Cebu City, Philippines)1
- Asian Productivity Organization1
- Baines, Graham1
- British Ecological Society1
- Cajune, Julie1
- Centro de Investigaciones Tecnológicas y Científicas (San Salvador, El Salvador)1
- Chadwick, M. J. (Michael J.)1
- Comisión Nacional del Medio Ambiente (Guatemala)1