000 | 00399nam a2200157Ia 4500 | ||
---|---|---|---|
008 | 170101s1969 xx 000 0 und d | ||
082 | _a631.558 I-5P | ||
100 | _aEASTIN, Jerry D | ||
245 | 0 | _aPhysiological aspects of crop yield : proceedings | |
260 |
_bMadison, U.S. _c1969 |
||
300 | _a396p | ||
650 | _aAGRICULTURE | ||
653 | _aAGRICULTURE | ||
653 | _aCROP YIELDS | ||
942 |
_2ddc _cB |
||
999 |
_c67311 _d67311 |