Preliminary color standards and color names for soils
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Soil scientists in the United States have been studying the problem of establishing standards for soil colors for many years. The work presented in this publication is the result of efforts by many people. It is still preliminary and revisions …
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Soil scientists in the United States have been studying the problem of establishing standards for soil colors for many years. The work presented in this publication is the result of efforts by many people. It is still preliminary and revisions will doubtless be suggested when the standards are used.
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"Soil scientists in the United States have been studying the problem of establishing standards for soil colors for many years. The work presented in this publication is the result of …"
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