000 | 00391 am a2200121 a 4500 | ||
---|---|---|---|
100 | 1 | _aAnderson, M.S., Byers, H.G. | |
245 | 1 | _aCharacter of the colloidal materials in the profiles of certain major soil groups | |
260 |
_aWashington _c1931 |
||
300 | _a1-24 p. | ||
942 |
_2udc _cB |
||
440 | _aSoil United States Department of Agriculture. Technical Bulletin No. 228 | ||
901 | _aS50186 | ||
999 |
_c107096 _d107096 |