"February 1980."Cover title.Includes bibliographical references (pages 26-28).Mode of access: Internet
"January 1970."Cover title.Includes bibliographical references.Mode of access: Internet
"November 1998."Shipping list no.: 99-0258-P.Includes bibliographical references.Mode of access: Int...
"November 1981."Cover title.Includes bibliographical references (pages 16-18).Mode of access: Intern...
"December 1982."Cover title.Includes bibliographical references (page 15).Mode of access: Internet
"September 1977."Cover title.Includes bibliographical references (page 15).Mode of access: Internet
Issued August 1977.Cover title.Includes bibliographical references (page 15).Mode of access: Interne...
"January 1978."Cover title.Includes bibliographical references (pages 27-28).Mode of access: Interne...
"November 1988."At head of title: "Aquatic Plant Control Research Program."Cover title.Includes bibl...
Cover title.Includes bibliographical references (p. 7-8).Mode of access: Internet
Cover title: Controlling weeds & volunteer crops during fallow periods.Includes bibliographical refe...
"August 1969."Caption title.Includes bibliographical references.Mode of access: Internet
Cover title."April 1982."Includes bibliographical references.Mode of access: Internet
"August, 1997"--P. [2] of cover.Cover title.Includes bibliographical references (p. 28).Mode of acce...
"September 1977."Cover title.Includes bibliographical references (page 18).Mode of access: Internet
"August 1986."Title from caption.Includes bibliographical references.Mode of access: Internet
"January 1970."Cover title.Includes bibliographical references.Mode of access: Internet
"November 1998."Shipping list no.: 99-0258-P.Includes bibliographical references.Mode of access: Int...
"November 1981."Cover title.Includes bibliographical references (pages 16-18).Mode of access: Intern...
"December 1982."Cover title.Includes bibliographical references (page 15).Mode of access: Internet
"September 1977."Cover title.Includes bibliographical references (page 15).Mode of access: Internet
Issued August 1977.Cover title.Includes bibliographical references (page 15).Mode of access: Interne...
"January 1978."Cover title.Includes bibliographical references (pages 27-28).Mode of access: Interne...
"November 1988."At head of title: "Aquatic Plant Control Research Program."Cover title.Includes bibl...
Cover title.Includes bibliographical references (p. 7-8).Mode of access: Internet
Cover title: Controlling weeds & volunteer crops during fallow periods.Includes bibliographical refe...
"August 1969."Caption title.Includes bibliographical references.Mode of access: Internet
Cover title."April 1982."Includes bibliographical references.Mode of access: Internet
"August, 1997"--P. [2] of cover.Cover title.Includes bibliographical references (p. 28).Mode of acce...
"September 1977."Cover title.Includes bibliographical references (page 18).Mode of access: Internet
"August 1986."Title from caption.Includes bibliographical references.Mode of access: Internet
"January 1970."Cover title.Includes bibliographical references.Mode of access: Internet
"November 1998."Shipping list no.: 99-0258-P.Includes bibliographical references.Mode of access: Int...
"November 1981."Cover title.Includes bibliographical references (pages 16-18).Mode of access: Intern...