000 00321nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a"631.416.4""1972""(082.2) L2"
100 _aAnonymous
245 _aPotasium in soil.
260 _a1972
_bInternational Potash Institute
_cSwitzerland
300 _a219
942 _cBK
999 _c58617
_d58617