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1by Campbell, Marius R. (Marius Robinson), 1858-1940“...Guidebook of the Western United States, Northern Pacific route, with a side trip to Yellowstone...”
Published 1915
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5by Averitt, Paul, 1908-1991“...Coking-coal deposits, western United States...”
Published 1966
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7Published 1995Table of Contents: “... species, western United States / by William N. Krebs and J. Platt Bradbry....”
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10by Brown, Roland W. (Roland Wilbur), 1893-1961Get full text
Published 1937
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13by Hail, William J. (William James), Jr., 1922-Get full text
Published 1957
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14by Miller, Betty M.“...Petroleum potential of wilderness lands in the western United States...”
Published 1983
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