La diversidad biológica y su conservación en América del Sur
1998
Nature conservation
Australian natural heritage charter : standards and principles for the conservation of places of natural heritage significance
1997
Cairnes, Lorraine B. |
Koshi Tappu wetlands : Nepal's Ramsar site
1997
Sah, Jay Prakash |
A field manual for registration of national heritage sites
1996
Bhandari, Bishnu |
Planta Europa : proceedings of the first European conference on the conservation of wild plants
1997
Newton, John |
Va de viaje, pues!
1997
Ayales Cruz, Ivannia |
Solís Rivera, Vivienne |
