000 00292nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aSTONE (John F) ; WILLIS (NAYNE O)
245 0 _aPlant production and management under dr
260 _cNIL
365 _b0
650 _aNIL
942 _cBK
999 _c90091
_d90091