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  1. 1
    Fresh-water invertebrates of the United States

    Fresh-water invertebrates of the United States av Pennak, Robert W. (Robert William)

    Publicerad 1978
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  2. 2
    Handnet sampling of aquatic benthic macroinvertebrates, 1978 methods for the examination of waters and associated materials

    Handnet sampling of aquatic benthic macroinvertebrates, 1978 methods for the examination of waters and associated materials

    Publicerad 1978
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  3. 3
    Quantitative samplers for benthic macroinvertebrates in shallow flowing water, 1980

    Quantitative samplers for benthic macroinvertebrates in shallow flowing water, 1980

    Publicerad 1982
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