Indicators of environmental quality proceedings of a symposium held during the AAAS meeting in Philadelphia, Pennsylvania, Dec. 26-31, 1971
| Erakunde egilea: | |
|---|---|
| Beste egile batzuk: | |
| Formatua: | Liburua |
| Hizkuntza: | ingelesa |
| Argitaratua: |
New York
Plenum Press
c1972.
|
| Gaiak: |