The twelve orders of soil taxonomy.

Bibliographic Details
Format:	Government Document eBook
Language:	English
Published:	Washington, DC : U.S. Department of Agriculture (USDA), Natural Resources Conservation Service, [2006]
Subjects:	Soil formation > United States > Charts, diagrams, etc. Soil science > United States > Charts, diagrams, etc. Soils > United States > Classification. Wall charts.
Online Access:	https://purl.fdlp.gov/GPO/gpo93911

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