| 000 | 00352nam a2200157Ia 4500 | ||
|---|---|---|---|
| 020 | _a058245586 3 | ||
| 082 | _a631.53/SIM | ||
| 100 | _aSimmonds, N W | ||
| 245 | _aPrinciples of crop improvement | ||
| 260 |
_bLongman _aLondon _c1979 |
||
| 300 | _a408 | ||
| 650 | _aCrop improvement | ||
| 650 | _aPlant breeding | ||
| 901 | _a4815 | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c1394 _d1394 |
||