National parks : private sector's role 1996 Charters, Anthony Ian | Gabriel, Michael Lloyd | Prasser, Scott |
The making of a conservative environmentalist, with reflections on government, industry, scientists, the media, education, economic growth, the public, the Great Lakes, activists, and the sunsetting of toxic chemicals 1995 Durnil, Gordon. K. |
Serengeti II : dynamics, management, and conservation of an ecosystem 1995 Sinclair, A. R. E. | Arcese, Peter |