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1by Mamay, Sergius H., 1920-Subjects: “...Paleontology Iowa Oskaloosa....”
Published 1962
Government Document Book -
2Subjects: “...Paleontology Iowa. http://id.loc.gov/authorities/subjects/sh2010104931...”
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3Published 1938“...Iowa. http://id.loc.gov/authorities/names/n79081387...”
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