Showing 1 - 2 results of 2 for search 'Schaeffer, Robert L., 1917-', query time: 0.36s Refine Results
  1. 1
    The vascular flora of Northampton County, Pennsylvania
    by Schaeffer, Robert L 1917-
    Published 1949

    Thesis Book
  2. 2
    The vascular flora of Northampton County, Pennsylvania
    by Schaeffer, Robert L., 1917-
    Published 1949

    Thesis Book
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