000 00296nam a2200133Ia 4500
008 161121s9999 xx 000 0 und d
100 _aHAROLD G HALCROW
245 0 _aCONTEMPORARY READINGS IN AGRICULTURAL EC
260 _cNIL
365 _b0
650 _aNIL
652 _a#N/A
942 _cBK
999 _c19510
_d19510