000 00331nam a2200133Ia 4500
008 170101s1993 xx 000 0 und d
020 _a873718348
082 _a631.7 BLA
100 _aBlack, Charles A
245 0 _aSoil fertility evaluation and control
260 _aNew York
_bCRC
_c1993
300 _aP.746
942 _2ddc
_cBK
999 _c262031
_d262031