Now showing items 4071-4095 of 4132
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(1973)
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(Pellston, Mich.: Biological Station, University of Michigan, 1975)
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(Douglas Lake [Michigan]: University of Michigan Biological Station, 1984)
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(Douglas Lake, Mich.: University of Michigan Biological Station, 1978)
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(Pellston, Mich.: Biological Station, University of Michigan, 1979)
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(1992)