Environmental impacts of backcountry tourism on three sides of Everest
1992
Byers, A. C. |
IUCN-WCNP4-Collection
Economic values of bird watching at Point Pelee National Park, Canada
Butler, James R. |
Bird watchers of Point Pelee National Park, Canada : their characteristics and activities, with special consideration to their social and resource impacts
Butler, James R. |
Ecotourism : its changing face and evolving philosophy
Butler, James R. |
Protected areas management and sustainable development : a simulation game in Latin America
Bullen, V. H. |
Human actvities and protected areas, with an emphasis on agro-forestry programme in Bangladesh
Bhuiyan, Ali Akbar |
Sesion simposio : planification regional y areas protegidas, la problematica del desarrollo
Budowski, Gerardo |
Potential impacts of rapid climate change on coral reefs - Implications for marine parks
Buddemeier, Robert W. |
How many species are there ? Monitoring biodiversity for protected areas management
Brockelman, Warren Y. |
Gibbons, hornbills and pittas : focal species in asian tropical forest conservation
Brockelman, Warren Y. |
Poonswad, P. |
Round, P. |