"August, 1969."Includes bibliographical references (p. 37).Mode of access: Internet
"CED-79-69.""April 13, 1979."Cover title.Includes bibliographical references.Mode of access: Interne...
"July 1966"--AcknowledgmentsIncludes bibliographical references (p. 130-139)Mode of access: Internet
Shipping list no.: 2000-0315-P."National Water-Quality Assessment Program"--Cover.Includes bibliogra...
"May 1958."Includes bibliographical references (p. 101-103).Mode of access: Internet
"March 1969."Includes bibliographical references.v. 1. Summary and legal study -- v. 2. Resources, e...
"Issued September 1983"--P. [1]Cover title.Bibliography: p. 62-63.Mode of access: Internet
Includes bibliographical references (pages 115-116).U.S. Fish and Wildlife Service.Mode of access: I...
"March, 1969."Includes bibliographical references (p. 35-36).Mode of access: Internet
"February, 1969."Includes bibliographical references (p. 32).Mode of access: Internet
"National Water-Quality Assessment Program."Includes bibliographical references (p. 27-30).Mode of a...
"February 1984."Includes bibliographical references (p. 58).Mode of access: Internet
"January 1968.""A technical report containing background data for a water pollution control program....
"National Water-Quality Assessment Program"Includes bibliographical references (p. 86-91).Mode of ac...
"April 1961."Includes bibliographical references: (p. 36).Mode of access: Internet
Includes indexes."September 1993."Shipping list no.: 93-0611-P."149 citations from AGRICOLA."Mode of...
"CED-79-69.""April 13, 1979."Cover title.Includes bibliographical references.Mode of access: Interne...
"July 1966"--AcknowledgmentsIncludes bibliographical references (p. 130-139)Mode of access: Internet
Shipping list no.: 2000-0315-P."National Water-Quality Assessment Program"--Cover.Includes bibliogra...
"May 1958."Includes bibliographical references (p. 101-103).Mode of access: Internet
"March 1969."Includes bibliographical references.v. 1. Summary and legal study -- v. 2. Resources, e...
"Issued September 1983"--P. [1]Cover title.Bibliography: p. 62-63.Mode of access: Internet
Includes bibliographical references (pages 115-116).U.S. Fish and Wildlife Service.Mode of access: I...
"March, 1969."Includes bibliographical references (p. 35-36).Mode of access: Internet
"February, 1969."Includes bibliographical references (p. 32).Mode of access: Internet
"National Water-Quality Assessment Program."Includes bibliographical references (p. 27-30).Mode of a...
"February 1984."Includes bibliographical references (p. 58).Mode of access: Internet
"January 1968.""A technical report containing background data for a water pollution control program....
"National Water-Quality Assessment Program"Includes bibliographical references (p. 86-91).Mode of ac...
"April 1961."Includes bibliographical references: (p. 36).Mode of access: Internet
Includes indexes."September 1993."Shipping list no.: 93-0611-P."149 citations from AGRICOLA."Mode of...
"CED-79-69.""April 13, 1979."Cover title.Includes bibliographical references.Mode of access: Interne...
"July 1966"--AcknowledgmentsIncludes bibliographical references (p. 130-139)Mode of access: Internet
Shipping list no.: 2000-0315-P."National Water-Quality Assessment Program"--Cover.Includes bibliogra...