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DIRECTORY OF GEOLOGICAL MATERIAL IN NORTH AMERICA

By Howell, Jesse V.. Washington American Geological Institute 1957 . 208 , The First Edition Was Published In 1946 As Part 2 Of The Bulletin Of The American Association Of Petroleum Geologists, Volume 30, Number 8

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PALEOGEOLOGIC MAPS

By Levorsen, A. I.. San Francisco W. H. Freeman 1960 . 174

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Geology of petroleum

By Levorsen, A. I.. San Francisco W. H. Freeman 1954 . x, 703p

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