| 000 | 00384nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 140205s9999 xx 000 0 und d | ||
| 082 | _a338.1973/USD | ||
| 100 | _aUSDA | ||
| 245 | _aWill there be enough food? | ||
| 260 |
_bUnited States Department of Agriculture _aU S A _c1981 |
||
| 300 | _a302 | ||
| 650 | _aAgricultural productivity | ||
| 650 | _aUnited States | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c1975 _d1975 |
||