| 000 | 00373nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1971 xx 000 0 und d | ||
| 082 | _a333.7 O92N | ||
| 100 | _aOWEN, Oliver S | ||
| 245 | 0 | _aNatural resource conservation : ecological approach | |
| 260 |
_bN.Y. _c1971 |
||
| 300 | _a593p | ||
| 650 | _aNATURAL RESOURCES | ||
| 653 | _aNATURAL RESOURCES | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c45046 _d45046 |
||