| 000 | 00430nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 020 | _a0851995497 | ||
| 080 |
_a631.522 _bC883 |
||
| 100 | _aEvenson, R.E. and Gollin, D., ed | ||
| 245 | _aCrop variety improvement and its effect on productivity: The impact of Internati | ||
| 260 |
_aWallingford _bCABI Publishing _c2003 |
||
| 300 | _a522p. | ||
| 901 | _a243654 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c14038 _d14038 |
||