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om'!— innsnounwnlOiL% <br /> 11 <br /> REFERENCES <br /> Cook, C. W. and C. D. Bonham. 1977. Techniques for vegetation <br /> measurements and analysis for pre- and post-mining inventory. Colorado <br /> State University, Range Science Dept., Sci. Ser. No. 28. <br /> Soil Survey Staff. 1951. Soil survey manual. USDA Handbook No. 18. U.S. <br /> Government Printing Office, Washington, D.C. <br /> Soil Survey Staff. 1975. Soil taxonomy. A basic system of soil <br /> classification for making and interpreting soil surveys. USDA-Soil <br /> Conservation Service, Washington, D.C. <br /> Soil Survey Staff. 1980. Soil survey manual. Map units (Chapter 5). <br /> National Soils Handbook Notice 63, Sept., 1980. USDA-Soil Conservation <br /> Service, Washington, D.C. <br /> Soil Survey Staff. 1981. Soil survey manual. Examination and description <br /> of soils in the field (Chapter 4). Issue I, Directive 430-V-SSM, May, 1981. <br /> USDA-Soil Conservation Service, Washington, D.C. <br /> Soil Survey Staff. 1983. National soils handbook. USDA-Soil Conservation <br /> Service, Washington, D.C. <br /> Soil Conservation Service. 1972 rev. Soil survey laboratory methods and <br /> procedures for collecting soil samples. Soil survey investigations report <br /> No. 1, USDA-Soil Conservation Service, Washington, D.C. <br />