| 000 | 00562 a2200157 4500 | ||
|---|---|---|---|
| 008 | 130814t xxu||||| |||| 00| 0 eng d | ||
| 010 | _a81065017 | ||
| 020 | _a0246115122 | ||
| 090 |
_c15907 _d15906 |
||
| 245 | _aBiological control in crop production | ||
| 260 |
_bAllanheld, Osmun, _c1981. _aTotowa, N.J. : |
||
| 300 |
_aix, 461 p. _bill. |
||
| 440 |
_aBeltsville symposia in agricultural research ; 5 _98128 |
||
| 650 |
_aPests --Biological control --Congresses. _vPlants, Protection of --Congresses. _98129 |
||
| 942 |
_cBK _hSB975 .B56 1981 |
||
| 999 |
_c15907 _d15906 |
||