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http://www.digitalhistory.uh.edu/disp_textbook.cfm?smtID=3&psid=4102

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http://www.nj.gov/state/darm/pdf/proprietors.pdf

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http://dqc.esr.earlham.edu:8080/xmlmm/loginB?XMLMMToc=E2177021A-002&XMLMMLanguage=English&XMLMMCollection=/earlham&XMLMMReturnURL=http://www.qhpress.org/cgi-bin/catalog.cgi%3Fname%3Dwilliam.penn

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