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The northwest environmental journal

Call Number: TD 181 .N93 N67 V. 7, No. 1
Guidelines for studies of contaminants in biological tissues for the National Water-Quality Assessment Program

Call Number: TD 427 .O7 C76 1993
Assessing biological integrity in running waters : a method and its rationale

Call Number: QH 541.5 .S7 A87 1986