| ISBN | |
|---|---|
| Category | Social sciences |
| Call number | HT153 W49 1980 |
| Physical description | 125 pages:25 cm. |
| Bibliographical references? | Yes |
| Publisher name | Conservation Foundation |
|---|---|
| Publication year | 1980 |
| Place of publication | Washington, D.C. |
| Language | English |
| Is series? | No |