000 00321 am a2200121 a 4500
100 1 _aMiller, T.A.
245 1 _aUse of concrete on the farm
260 _aWashington
_c1973
300 _a1-59 p.
942 _2udc
_cB
440 _aFarm United States Department of Agriculture. Farmers Bulletin No. 1772
901 _aS48894
999 _c105066
_d105066