| 000 | 00428 aa a2200169 a 4500 | ||
|---|---|---|---|
| 020 | _a0618249060 | ||
| 082 |
_a363.7384 _bC239s40a |
||
| 100 | _aCarson, R. | ||
| 245 | 1 | _aSilent spring | |
| 250 | _a40th | ||
| 260 |
_aBoston _bHouston Mifflin Co. _c1990 |
||
| 300 | _axix | ||
| 690 | _aPesticides-Environmental aspects | ||
| 690 | _aPesticides-Toxilogy | ||
| 690 | _aInsect pests-Biological control | ||
| 997 | _aA160567 C | ||
| 999 |
_c468881 _d468881 |
||