000 | 00421 a2200181 4500 | ||
---|---|---|---|
260 | _aMaine | ||
440 | _nN° 822 | ||
260 | _bMaine Agricultural Experiment Station | ||
300 | _a43p. | ||
245 | _aThe Economic Benefits of late-season black fly control | ||
260 | _c1988 | ||
130 | _lEn. | ||
690 | _aRETARDSAISONNIER | ||
690 | _aINTERET ECONOMIC | ||
440 | _x0734-9548 | ||
999 |
_c27486 _d27486 |