000 | 00346nam a2200133Ia 4500 | ||
---|---|---|---|
008 | 170101s1950 xx 000 0 und d | ||
082 | _a581.21 H91 | ||
245 | 0 | _aHunger signs in crops : a symposium : proceedings | |
260 |
_bWashington, D.C. _c1950 |
||
300 | _a388p | ||
650 | _aPLANTS DISEASES | ||
653 | _aPLANTS DISEASES | ||
942 |
_2ddc _cB |
||
999 |
_c7672 _d7672 |