1. 1
    Published 1991
    Subjects ...Geology, Structural Research....
    Book
  2. 2
    by Badgley, Peter C.
    Published 1959
    Subjects
    Book
  3. 3
    by Frankel, Henry R., 1944-
    Published 2012
    Subjects ...Continental drift Research History 20th century....
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    Electronic eBook