000 00367 am a2200121 a 4500
100 1 _aFletcher, C.C., Bryan, H.
245 1 _aModification of the method of mechanical soil analysis
260 _aWashington
_c1912
300 _a1-16 p.
942 _2udc
_cB
440 _aSoil United States Department of Agriculture, Bureau of Soils.Bulletin No. 84
901 _aS49772
999 _c106375
_d106375