"August 1987"--P. [i]Cover title.Bibliography: p. 24-27.Mode of access: Internet
Contribution from Soil Conservation Service.Caption title.Mode of access: Internet.
Cover title."September 1985"--p. 2 of cover.Bibliography: p. 48-52.Mode of access: Internet
"October 2003."Cover title.Includes bibliographical references (p. 42-48).Mode of access: Internet
Cover title."September 1987"--P. [i].Bibliography: p. 27-29.Mode of access: Internet
"August 1987"--Cover.Includes bibliographical references (p. 21-22).Mode of access: Internet
"October 2008."Includes bibliographical references (p. 49).Mode of access: Internet
"July 1986."Distributed to depository libraries in microfiche.Bibliography: p 15-17.Mode of access: ...
"April 2004."Cover title.Includes bibliographical references (p. 18-19).Mode of access: Internet
"August 1969."Caption title.Includes bibliographical references.Mode of access: Internet
"GPO 981-226."--p. 9.Caption title.Includes bibliographical references (p. 9).Mode of access: Intern...
"July 2000."Cover title.Includes bibliography (p. 69-72).Mode of access: Internet
"February 2003."Cover title.Includes bibliographical references (p. 37).Mode of access: Internet
"March 1997"--P. [2] of cover.Cover title.Includes bibliographical references (p.19).Mode of access:...
"July 1983."Distributed to depository libraries in microfiche.Cover title.Bibliography: p. 16-17.Mod...
"June 1980"--verso of t.p.Cover title.Bibliography: p. 11.Mode of access: Internet
Contribution from Soil Conservation Service.Caption title.Mode of access: Internet.
Cover title."September 1985"--p. 2 of cover.Bibliography: p. 48-52.Mode of access: Internet
"October 2003."Cover title.Includes bibliographical references (p. 42-48).Mode of access: Internet
Cover title."September 1987"--P. [i].Bibliography: p. 27-29.Mode of access: Internet
"August 1987"--Cover.Includes bibliographical references (p. 21-22).Mode of access: Internet
"October 2008."Includes bibliographical references (p. 49).Mode of access: Internet
"July 1986."Distributed to depository libraries in microfiche.Bibliography: p 15-17.Mode of access: ...
"April 2004."Cover title.Includes bibliographical references (p. 18-19).Mode of access: Internet
"August 1969."Caption title.Includes bibliographical references.Mode of access: Internet
"GPO 981-226."--p. 9.Caption title.Includes bibliographical references (p. 9).Mode of access: Intern...
"July 2000."Cover title.Includes bibliography (p. 69-72).Mode of access: Internet
"February 2003."Cover title.Includes bibliographical references (p. 37).Mode of access: Internet
"March 1997"--P. [2] of cover.Cover title.Includes bibliographical references (p.19).Mode of access:...
"July 1983."Distributed to depository libraries in microfiche.Cover title.Bibliography: p. 16-17.Mod...
"June 1980"--verso of t.p.Cover title.Bibliography: p. 11.Mode of access: Internet
Contribution from Soil Conservation Service.Caption title.Mode of access: Internet.
Cover title."September 1985"--p. 2 of cover.Bibliography: p. 48-52.Mode of access: Internet
"October 2003."Cover title.Includes bibliographical references (p. 42-48).Mode of access: Internet