Soil survey manual - United States. Dept. of Agriculture. Miscellaneous publication (United States Dept. of Agriculture, Washington: Agricultural Research Administration, 1951)
'This is a revision and enlargement of U.S. Department of Agriculture miscellaneous publication 274, the Soil survey manual, issued September 1937, and supersedes it.'
'Issued August 1951.'
Includes index.
p. 443-454.
Keywords: Soil surveys -- Handbooks, manuals, etc