Sources :
Sources : notable selections in environmental studies.
- New York : Brown and Benchmark, c1997.
- xii, 352 p.
Includes index.
0697328945
Conservation of natural resources.
Environmental protection.
Human ecology--study and teaching.
GE105 / .S68
Includes index.
0697328945
Conservation of natural resources.
Environmental protection.
Human ecology--study and teaching.
GE105 / .S68