000 | 00468nam a2200169Ia 4500 | ||
---|---|---|---|
008 | 160608s9999 xx 000 0 und d | ||
020 | _a801821363 | ||
100 |
_aCummings, Ralph W _94086 |
||
100 |
_aWortman, Sterling _9113269 |
||
245 | _aTo feed this world: The challenge and the strategy | ||
260 | _aNew Delhi | ||
260 | _bJohn Hopkins University Press | ||
260 | _c1978 | ||
300 | _axiv; 440 | ||
650 |
_afood crops _936773 |
||
650 |
_afood supply _9932 |
||
999 |
_c52478 _d52478 |