"National Water-Quality Assessment Program."Shipping list no.: 99-0050-P.Includes bibliographical references (p. 30-32).Mode of access: Internet
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Shipping list no.: 98-0203-P."National Water-Quality Assessment Program"--Cover.Includes bibliograph...
"National Water-Quality Assessment Program"--Cover.Shipping list no.: 96-0006-P.Includes bibliograph...
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"National Water-Quality Assessment Program."Includes bibliographical references (p. 39-40).Mode of a...
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Map on folded leaf in pocket.Shipping list no.: 98-0197-P.Includes bibliographical references (p. 68...
"National Water-Quality Assessment Program"--Cover.Shipping list no.: 95-0124-P.Includes bibliograph...
"September, 1994"--P. [2].Shipping list no.: 94-0388-P.Caption title.Mode of access: Internet
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Shipping list no.: 2003-0190-P."Contribution from the National Water-Quality Assessment Program."Inc...
Shipping list no.: 2005-0011-P.Includes bibliographical references (p. 49-50).Mode of access: Intern...
Shipping list no.: 98-0203-P."National Water-Quality Assessment Program"--Cover.Includes bibliograph...
"National Water-Quality Assessment Program"--Cover.Shipping list no.: 96-0006-P.Includes bibliograph...
Shipping list no.: 97-0237-P."National Water-Quality Assessment Program."Includes bibliographical re...
"National Water-Quality Assessment Program."Includes bibliographical references (p. 39-40).Mode of a...
Shipping list no.: 97-0201-P.National Water-Quality Assessment Program.Includes bibliographical refe...
Shipping list no.: 2003-0185-P."National Water-Quality Assessment Program."Includes bibliographical ...
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Map on folded leaf in pocket.Shipping list no.: 98-0197-P.Includes bibliographical references (p. 68...
"National Water-Quality Assessment Program"--Cover.Shipping list no.: 95-0124-P.Includes bibliograph...
"September, 1994"--P. [2].Shipping list no.: 94-0388-P.Caption title.Mode of access: Internet
Shipping list no.: 96-0061-P.Includes bibliographical references (p. 29-31).Mode of access: Internet
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Shipping list no.: 2003-0190-P."Contribution from the National Water-Quality Assessment Program."Inc...
Shipping list no.: 2005-0011-P.Includes bibliographical references (p. 49-50).Mode of access: Intern...
Shipping list no.: 98-0203-P."National Water-Quality Assessment Program"--Cover.Includes bibliograph...
"National Water-Quality Assessment Program"--Cover.Shipping list no.: 96-0006-P.Includes bibliograph...