Keys to soil taxonomy /
Keys to soil taxonomy / 
by Soil Survey staff. 
 - 8th ed. 
 - Washington, D.C. :  U.S. Dept. of Agriculture, Natural Resources Conservation Service,  c1998. 
 - 326 p. :  ill. ;  28 cm. 
Includes bibliographical references (p. 36) and index.
812041330x
Soils--Classification.
631.44 / SOK
0120 (MF)
                        Includes bibliographical references (p. 36) and index.
812041330x
Soils--Classification.
631.44 / SOK
0120 (MF)
