International workshop on the management planning of Khunjerab National Park, June 7-16, 1989 : proceedings
1989
Bell, Barbara Goodman |
IUCN
The Alps : a system under pressure
1989
Briand, Frédéric |
Dubost, Michel |
Pitt, David |
Rambaud, Dominique |
The last rain forests
1990
Attenborough, David |
Report of the National Seminar on Women as Environmental Conservationists and Resource Managers, 3-4 June 1990, Kathmandu, Nepal
1991
Bhattarai, Badri |
Janssens-Sannon, Premeeta |
Walia : the approach. Practical guidelines [for] schools environmental education project
1991
Roy, Nicole Du |