Now showing items 26-32 of 32
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Galloway, J. J.; Ehlers, G. M. (Museum of Paleontology, The University of Michigan, 1960)
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Ehlers, G. M.; Stumm, E. C. (Museum of Paleontology, The University of Michigan, 1952)
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Ehlers, G. M. (Museum of Paleontology, The University of Michigan, 1973)
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Ehlers, G. M.; Kesling, R. V. (Museum of Paleontology, The University of Michigan, 1963)
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Ehlers, G. M. (Museum of Paleontology, The University of Michigan, 1925)
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Boucot, A. J.; Ehlers, G. M. (Museum of Paleontology, The University of Michigan, 1963)
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Ehlers, G. M.; Wright, Jean D. (Jean Davies) (Museum of Paleontology, The University of Michigan, 1955)