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21by Flores, Dan L. (Dan Louie), 1948-Subjects: “...Frontier thesis....”
Published 1978
Link to ProQuest copy.
Link to OAKTrust copy
Thesis Book -
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37by Strickland, Rex W. (Rex Wallace), 1897-Subjects: “...Frontier thesis. http://id.loc.gov/authorities/subjects/sh85052077...”
Published 1960
Book -
38Published 1977Subjects: “...Frontier thesis....”
Book -
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