000 00308 am a2200121 a 4500
100 1 _aMehl, J.M.
245 1 _aHedging in grain futures
260 _aWashington
_c1931
300 _a1-103 p.
942 _2udc
_cB
440 _aGrain United States Depatment of Agriculture. Circular No. 151
901 _aS48667
999 _c104730
_d104730