Renewable natural resources : economic incentives for improved management
1989
Resources management
Managing the environmental crisis : incorporating competing values in natural resource administration
1989
Henning, Daniel H. |
Mangun, William R. |
Caldwell, Lynton K. |
The economics of dryland management
1989
Dixon, John A. |
James, David E. |
Sherman, Paul B. |
Servicio de parques nacionales areas silvestres de Nicaragua (primer borrador)
1983
Dilger F., R. |
Securing the commons
2000