000 00263 a2200109 4500
080 _a631.372
_bJ 39 R
245 1 _aResearch methods on farm use of tractors
_cby N. Jasny
260 _aNew York
_c1938
650 _aTractors
100 1 _aJasny, N.
_d
901 _a13617
999 _c43359
_d43359