000 00375 a2200145 4500
082 _a630
_bTHP
100 _aThomas, Gerald W.
_9108319
245 _aProgress and change
_cGerald W.Thomas
_b: in the agricultural industry
260 _aLowa:
_bWMC Brown Book,
_c1969.
300 _axiv, 178p.
500 _aPB
546 _aEng
650 _aAgriculture
_9166540
942 _cBK
999 _c56679
_d56679