"27 June, 1987."Shipping list no.: 87-485-P.Bibliography: p. 35-36.Mode of access: Internet
"July 1987."Shipping list no.: 87-624-P.Bibliography: p. 25-27.Mode of access: Internet
"July 1988."Shipping list no.: 90-271-P.Caption title.Includes bibliographical references (p. 5).Mod...
"October 1985."Shipping list no : 86-194-P."Electronic Techniques, Inc."--P. [2] of cover.Mode of ac...
Shipping list no.: 90-628-P.Includes bibliographical references (p. 47-48).Mode of access: Internet
Shipping list no.: 93-0500-P.Includes bibliographical references (p. 32-33).Mode of access: Internet
Shipping list no.: 2003-0228-P.Includes bibliographical references (p. 74-75).Mode of access: Intern...
Shipping list no.: 95-0272-P.Includes bibliographical references (p. 35-36).Mode of access: Internet
Shipping list no.: 98-0062-P.Includes bibliographical references (p. 41-42).Mode of access: Internet
Shipping list no.: 2003-0162-P.Includes bibliographical references (p. 29-30).Mode of access: Intern...
Shipping list no.: 98-0286-P."National Water-Quality Assessment Program"--Cover.Includes bibliograph...
"May 2000."Shipping list no.: 2000-0268-P.Cover title.Includes bibliographical references.Mode of ac...
Shipping list no.: 95-0074-P.Includes bibliographical references (p. 61).Mode of access: Internet
Shipping list no.: 90-280-P (v.1).Includes bibliographical references.Mode of access: Internet
STAR category 45."November 1982."Includes bibliographical references.Mode of access: Internet
"August 1987"--P. [12].Shipping list no.: 87-613-P.Caption title.Bibliography: p. 10.Mode of access:...
"July 1987."Shipping list no.: 87-624-P.Bibliography: p. 25-27.Mode of access: Internet
"July 1988."Shipping list no.: 90-271-P.Caption title.Includes bibliographical references (p. 5).Mod...
"October 1985."Shipping list no : 86-194-P."Electronic Techniques, Inc."--P. [2] of cover.Mode of ac...
Shipping list no.: 90-628-P.Includes bibliographical references (p. 47-48).Mode of access: Internet
Shipping list no.: 93-0500-P.Includes bibliographical references (p. 32-33).Mode of access: Internet
Shipping list no.: 2003-0228-P.Includes bibliographical references (p. 74-75).Mode of access: Intern...
Shipping list no.: 95-0272-P.Includes bibliographical references (p. 35-36).Mode of access: Internet
Shipping list no.: 98-0062-P.Includes bibliographical references (p. 41-42).Mode of access: Internet
Shipping list no.: 2003-0162-P.Includes bibliographical references (p. 29-30).Mode of access: Intern...
Shipping list no.: 98-0286-P."National Water-Quality Assessment Program"--Cover.Includes bibliograph...
"May 2000."Shipping list no.: 2000-0268-P.Cover title.Includes bibliographical references.Mode of ac...
Shipping list no.: 95-0074-P.Includes bibliographical references (p. 61).Mode of access: Internet
Shipping list no.: 90-280-P (v.1).Includes bibliographical references.Mode of access: Internet
STAR category 45."November 1982."Includes bibliographical references.Mode of access: Internet
"August 1987"--P. [12].Shipping list no.: 87-613-P.Caption title.Bibliography: p. 10.Mode of access:...
"July 1987."Shipping list no.: 87-624-P.Bibliography: p. 25-27.Mode of access: Internet
"July 1988."Shipping list no.: 90-271-P.Caption title.Includes bibliographical references (p. 5).Mod...
"October 1985."Shipping list no : 86-194-P."Electronic Techniques, Inc."--P. [2] of cover.Mode of ac...