| 000 | 004300000a22001690004500 | ||
|---|---|---|---|
| 060 | _a100 | ||
| 082 | _a631 HUG | ||
| 100 | _aHughes, harold D | ||
| 100 | _aMetcalfe, GDarrel S | ||
| 245 | _aCrop production | ||
| 250 | _a3 | ||
| 260 | _aNewyork, Macmillan publishing co. Inc. | ||
| 260 | _c1972 | ||
| 300 | _a613 | ||
| 650 | _aRotation of crops/soil pollution/world food-population problem/dryland grasses | ||
| 942 | _cBK | ||
| 999 |
_c220461 _d220461 |
||