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  1. The biological survey of 12 November, 1970 /
    By: Ayers, John C. (John Carr), - Mozley, Samuel C. - Roth, James C. - University of Michigan. Great Lakes Research Division.
    Publication info: Ann Arbor, Mich. :Great Lakes Research Division, University of Michigan,[1973].
    Holding Institution: University of Michigan (archive.org)
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  2. Psammolittoral investigation 1972 /
    By: Seibel, Erwin. - Roth, James C. - Stewart, John A. - Williams, Susan L. - University of Michigan. Great Lakes Research Division.
    Publication info: Ann Arbor, Mich. :Great Lakes Research Division, The University of Michigan,1973.
    Holding Institution: University of Michigan (archive.org)
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