| 000 | nam a22 4500 | ||
|---|---|---|---|
| 110 | _aNornan, David W. | ||
| 245 | _aFarm and village production systems in the semi-arid tropics of West African interpretive review of research | ||
| 260 |
_aAndhra _bInternational Crops Research Institute for the semi-arid Tropics _c1981 |
||
| 942 | _c22 | ||
| 999 |
_c5824 _d5824 |
||