000 00322nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aGray, R.B.
245 _aHarvesting with combines
260 _aWashington
_c1955
300 _a1-42 p.
440 _aUnited States Department of A
901 _a45849
942 _cB
_2udc
999 _c8291
_d8291