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NRCS_FieldBookforDescribingandSamplingSoils_v3
NRCS_FieldBookforDescribingandSamplingSoils_v3 (Version 1.0)

Documents: Protocol
Version 1.0
USDA NRCS National Soil Survey Center Field Book for Describing and Sampling Soils

USDA NRCS National Soil Survey Center Field Book for Describing and Sampling Soils