by J.F. Smith [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the U.S. Atomic Energy Commission
by J.F. Smith [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the U.S. Atomic Energy Commission
by J.F. Smith, Jr. [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the U.S. Atomic Energy Commission