Showing 1 - 3 of 3 for search: 'Duncan, Helen,', query time: 0.04s
by Duncan, Helen,
Published: [U.S. Department of the Interior, U.S. Geological Survey], 1956
Description: 1 online resource (iii, 209-236 pages, plates) : illustrations, map.
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by Duncan, Helen, 1910-1971
Published: U.S. G.P.O., 1956
Description: iii, 209-236 pages : illustrations, map ; 23 cm.
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by Tooker, Edwin W., 1923-2013,
Published: United States Department of the Interior, Geological Survey, 1970
Description: 1 online resource (iv, A76 pages) : illustrations, maps.
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Corals, Fossil Paleontology Geology Geology, Stratigraphic