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XV.-The Biological Surveys of 12 November, 1970, J. C. Ayers, S. C. Mosely, J. C. Roth, 1973

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The collection is open for research.

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Copyright is held by the Regents of the University of Michigan but the collection may contain third-party materials for which copyright is not held. Patrons are responsible for determining the appropriate use or reuse of materials.