"June 1981."Cover title.Includes bibliographical references (page 19).Mode of access: Internet
"June 1972."Includes bibliographical references (pages 61-62).Mode of access: Internet
"June 1980."Cover title.Includes bibliographical references (pages 13-14).Mode of access: Internet
"July 1982."Cover title.Includes bibliographical references (page 67).Final report.Mode of access: I...
"August 1980."Cover title.Includes bibliographical references (page 18).Mode of access: Internet
"May 1977."Cover title.Includes bibliographical references (pages 49-50).Mode of access: Internet
"January 1981."Cover title.Includes bibliographical references (page 15).Mode of access: Internet
"July 1989"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Includes ...
One folded map in pocket."March 1956."Cover title.Bibliography: p. 21-22.Mode of access: Internet
"August 1987."Distributed to depository libraries in microfiche.Caption title.Bibliography: p. 6.Mod...
"April 1977."Cover title.Includes bibliographical references (pages 74-75).Mode of access: Internet
"May 1976."Includes bibliographical references (pages 98-99).Mode of access: Internet
"May 1993."Includes bibliographical references.Final report.Mode of access: Internet
At head of title: United States Department of Agriculture. Soil Conservation Service.Includes biblio...
Volume 1 of 2 volumes."June 1963."Includes bibliographical references (pages 216-218).Mode of access...
"October 1979."Cover title.Includes bibliographical references.Mode of access: Internet
"June 1972."Includes bibliographical references (pages 61-62).Mode of access: Internet
"June 1980."Cover title.Includes bibliographical references (pages 13-14).Mode of access: Internet
"July 1982."Cover title.Includes bibliographical references (page 67).Final report.Mode of access: I...
"August 1980."Cover title.Includes bibliographical references (page 18).Mode of access: Internet
"May 1977."Cover title.Includes bibliographical references (pages 49-50).Mode of access: Internet
"January 1981."Cover title.Includes bibliographical references (page 15).Mode of access: Internet
"July 1989"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Includes ...
One folded map in pocket."March 1956."Cover title.Bibliography: p. 21-22.Mode of access: Internet
"August 1987."Distributed to depository libraries in microfiche.Caption title.Bibliography: p. 6.Mod...
"April 1977."Cover title.Includes bibliographical references (pages 74-75).Mode of access: Internet
"May 1976."Includes bibliographical references (pages 98-99).Mode of access: Internet
"May 1993."Includes bibliographical references.Final report.Mode of access: Internet
At head of title: United States Department of Agriculture. Soil Conservation Service.Includes biblio...
Volume 1 of 2 volumes."June 1963."Includes bibliographical references (pages 216-218).Mode of access...
"October 1979."Cover title.Includes bibliographical references.Mode of access: Internet
"June 1972."Includes bibliographical references (pages 61-62).Mode of access: Internet
"June 1980."Cover title.Includes bibliographical references (pages 13-14).Mode of access: Internet
"July 1982."Cover title.Includes bibliographical references (page 67).Final report.Mode of access: I...