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Bioassessment of freshwater ecosystems : using the reference condition approach

Call Number: QH 541.15 .E265 B35
Methods for collecting algal samples as part of the National Water-Quality Assessment Program

Call Number: QK 564 .P67 1993
Guidelines for the processing and quality assurance of benthic invertebrate samples collected as part of the National Water-Quality Assessment Program

Call Number: QH 91.8 .B4 C84 1993
Freshwater biomonitoring and benthic macroinvertebrates

Call Number: QH 96.8 .B5 F74 1993
Biological assessment and criteria : tools for water resource planning and decision making

Call Number: QH 96.8 .B5 B54
Restoring life in running waters : better biological monitoring

Call Number: QH 96.8 .B5 K37