| 000 | 00419pam a2200169a 44500 | ||
|---|---|---|---|
| 008 | 170807b1994 xxu||||| |||| 00| 0 eng d | ||
| 020 | _a | ||
| 082 | _aWP 94-02 | ||
| 100 | _aByerlee, D | ||
| 245 | _aTechnical Change In Maize Production: A Global Perspective | ||
| 260 |
_aMexico _bCIMMYT _c1994 |
||
| 300 | _a31p | ||
| 490 | _aWorking Paper | ||
| 700 | _aLopez Pereira M A | ||
| 906 | _a17684 | ||
| 942 |
_2ddc _cG |
||
| 999 |
_c124916 _d124916 |
||