U.S. Department of the Interior, Geological Survey ; edited by D.A. Rickert, W.J. Ulman, and E.R. HamptonU.S. Govt. Print. Off. : for sale by the Supt. of Docs., U.S. Govt. Print. Off.1979
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著者標目Geological Survey (U.S.) Rickert, David A. Ulman, W. J. Hampton, E. R.