000 00373nam a2200121Ia 45e0
008 181001s1977 xx 000 0 und d
100 _aHunt D.
245 0 _aFarm power and machinery management
260 _aIowa
_bState Univ.
_c1977
300 _a365
942 _2ddc
_cBK
999 _c2764
_d2764