1
by Gangstad, Edward O.
Published 1990
Subjects: ...Natural resources -- Management -- North America...
2
by Omara-Ojungu, Peter H, 1949-
Published 1992
Subjects: ...Natural resources -- Management -- Developing countries...
3
by Chambers, Robert, 1932-
Published 1990
Subjects: ...Renewable natural resources -- Management -- India...
4
Published 1990
Subjects: ...Renewable natural resources -- Management -- Congresses -- United States....
5
by Dixon, John A, 1946-
Published 1990
Subjects: ...Conservation of natural resources -- Developing countries...