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| 020 | 0 | 0 | _a0929900014 |
| 090 | 0 | 0 | _aS 590.4 1990 |
| 245 | 1 | 0 |
_aKeys to soil taxonomy by soil survey staff _bFourth ed. _cprepared by Crop and Soil Environmental Sciences Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA |
| 250 | 0 | 0 | _a[Fourth Edition] |
| 260 | 0 | 0 |
_aVirginia, USA _bVirginia Polytechnic Institute and State University _c1990 |
| 300 |
_a422p. _c23 cm |
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| 500 | 0 | 0 | _aSMSS Technical Monograph No. 19 |
| 650 | 0 | 0 |
_aSoil _xTaxonomy |
| 710 | 1 | 1 | _aUSA, Soil Management Support Services |
| 710 | 1 | 1 | _aUSA, United States Department of Agriculture, Soil Conservation Service |
| 710 | 1 | 1 | _aUSA, Virginia Polytechnic Institute and State University, Department of Crop and Soil Environmental Sciences |
| 999 |
_c2924 _d2924 |
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