by G.W. Weir [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the U.S. Atomic Energy Commission
by Douglas M. Sheridan [and three others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the U.S. Atomic Energy Commission
by Alfred L. Bush [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the U.S. Atomic Energy Commission