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Methods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program
Book
(1993.)
Call Number: QH 91.8 .B4 C85 1993
Guidelines for the processing and quality assurance of benthic invertebrate samples collected as part of the National Water-Quality Assessment Program
Book
(1993.)
Call Number: QH 91.8 .B4 C84 1993