| 000 | 00803nam a2200277Ia 4500 | ||
|---|---|---|---|
| 008 | 170203s9999 xx 000 0 und d | ||
| 020 | _a9780870449109 | ||
| 050 | _a550 | ||
| 050 | _bC214ou 1994 | ||
| 100 | _aCanby, Thomas. | ||
| 245 | _aOur changing Earth / | ||
| 245 | _cby Thomas Y. Canby ; prepared by the Book Division, National Geographic Society. | ||
| 260 | _aWashington, D.C. : | ||
| 260 | _bThe Society, | ||
| 260 | _c1994 | ||
| 300 | _a199 pages : | ||
| 300 | _bcolor illustrations ; | ||
| 300 | _c25 cm. | ||
| 500 | _a Includes index. | ||
| 650 | _aConservation of natural resources. | ||
| 650 | _aEnvironmental degradation -- | ||
| 650 | _aEnvironmentalism. | ||
| 650 | _aNature -- | ||
| 650 | _xCitizen participation. | ||
| 650 | _xEffect of human beings on. | ||
| 999 |
_c305720 _d305720 |
||