Proclamations and orders relating to the national park service up to January 1, 1945
1947
Sullivan, Thomas Alan |
Environmental legislation
Laws relating to the National Park Service, the national parks and monuments
Tolson, Hillory A. |
Sullivan, Thomas Alan |
Environmental management in South Africa
1994
Fuggle, R. F. |
Rabie, M. A. |
The forest service : a study in public land management
1975
Robinson, Glen O. |
Medio ambiente y desarrollo en el Ecuador : reflexiones sobre un diagnóstico
1983
Encalada Reyes, Marco A. |
The history and status of South America national parks and evaluation of selected management options
1974
Wetterberg, G. B. |
Guidelines for integration of tourism development and environmental protection in the South Pacific
1990