000 | 00493nam a2200169Ia 4500 | ||
---|---|---|---|
008 | 170901s1981 xx 000 0 und d | ||
082 |
_a631 _bI-5A |
||
100 | _aProceedings | ||
245 | 0 | _aAgricultural Yield Potentials in Continental Climates | |
260 |
_aSwitzerland _bInternational Potash Institute _c1981 |
||
300 | _a295 | ||
650 | _aAgriculture and related technologies | ||
650 | _aTechnology (Applied sciences) | ||
653 | _aAgriculture | ||
653 | _aClimate | ||
942 |
_2ddc _cBK |
||
999 |
_c12821 _d12821 |