Theory of continental drift; a symposium on the origin and movement of land masses, both inter-continental and intra-continental, as proposed by Alfred Wegener,
by W.A.J.M. van Waterschoot van der Gracht, Bailey Willis, Rollin T. Chamberlin ... [and others]
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Item Link | Original Source |
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Full view | University of California |
Full view | University of Michigan |
Full view | University of California |