Showing 1 - 3 results of 3 for search 'Becker, Herman Frederick, 1907-', query time: 0.12s Refine Results
  1. 1
    A new species of Mahonia from the Oligocene Ruby Flora of southwestern Montana /
    Book
  2. 2
    Additions to and revision of the Oligocene Ruby paper shale flora of southwestern Montana /
    Book
  3. 3
    Oligocene plants from the Upper Ruby River Basin, southwestern Montana.
    Book
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