* Boorstin, Daniel J. ''The Discoverers'' (1983) [http://www.amazon.com/Discoverers-Daniel-J-Boorstin/dp/0394402294/ref=sr_1_2?ie=UTF8&s=books&qid=1236945040&sr=8-2 excerpt and text search]
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* Boorstin, Daniel J. ''The Discoverers'' (1983) [https://www.amazon.com/Discoverers-Daniel-J-Boorstin/dp/0394402294/ref=sr_1_2?ie=UTF8&s=books&qid=1236945040&sr=8-2 excerpt and text search]
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* Parry, J.H. ''The Age of Reconnaissance: Discovery, Exploration, and Settlement, 1450-1650'' (1982) [http://www.amazon.com/Age-Reconnaissance-Discovery-Exploration-Settlement/dp/0520042352/ref=pd_bbs_3?ie=UTF8&s=books&qid=1236944939&sr=8-3 excerpt and text search]
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* Parry, J.H. ''The Age of Reconnaissance: Discovery, Exploration, and Settlement, 1450-1650'' (1982) [https://www.amazon.com/Age-Reconnaissance-Discovery-Exploration-Settlement/dp/0520042352/ref=pd_bbs_3?ie=UTF8&s=books&qid=1236944939&sr=8-3 excerpt and text search]