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• LITERATURE CITED
<br />Brady, N.C. 1974. The nature and properties of soils, eighth edition. The Macmillan Co., New York. 653 p.
<br />Cater, F. W. 1970. Geology of the Salt Anticline Region in Southwestern Colorado. U.S. Geological Survey
<br />Professional Paper 637. U.S. Government Printing Office. Washington D.C. 75 p.
<br />Fosberg, M.A. and A.L. Falen. 1983. Guide for preparing soil pedon descriptions (abbreviations, descriptions,
<br />and classifications), USDA-SCS and Univ. of Idaho -Dept. of Plant and Soil Sciences. 107 p.
<br />Guthrie, R.L. and J.E. W iffy. March-April, 1982. New designations for soil horizons and layers and the new
<br />Soil Survey Manual. Comments and Letters to the Editor. Soil Sci. Soc. Am. J. Vol. 46, No. 2. p. 443-444.
<br />Hawn, William. May 27, 1987. Party leader, SCS San Migel Area Soil Survey. Personal Communication.
<br />Klute, A. ed., 1986. Methods of Soil Analysis, No. 9, Part I, 2nd ed., American Society of Agronomy, Madison,
<br />WI. 1188 p.
<br />• Levesque, M. and E.D. Vendett. 1971. Selenium determination in soil and plant material. Canadian Journal
<br />of Soil Science. Vol. 51, p. 85-93.
<br />Natural Resource Conservation Service.1984. Colorado Important Farmland Inventory. NRCS Colorado.
<br />Natural Resource Conservation Service. 1996. National Soil Survey Handbook, Chapter 657.5, Identification
<br />of Important Farmlands. Washington DC.
<br />Natural Resource Conservation Service. Unpublished. Soil Survey of San Miguel Area, Colorado, Parts of
<br />Dolores, Montrose and San Miguel Counties.
<br />Nettleton, W.D., R.E. Nelson, B.R. Brasher, and P.S. Derr. 1982. Gypsiferous soils in the western United
<br />States. Chapter 9, in Acid Sulfate Weathering, Soil Science Society of America. p. 147-68.
<br />Page, A. L., ed. 1982. Methods of Soil Analysis, No. 9. Part II, 2nd ed., American Society of
<br />Agronomy, Madison, WI. 1159 p.
<br />Rosenfeld, I. and O.A. Beath. 1964. Selenium: Geobotany, Biochemistry, Toxicity, and Nutrition. Academic
<br />Press, N.Y. 411 p.
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<br />(Revised March 2006) 2.04.9-23
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