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Boxer, C.R. (). The Portuguese searborne empire 1415-1825 . New York: Penguin Books.

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Boxer, C.R. The Portuguese searborne empire 1415-1825. New York: Penguin Books, . Text.

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Boxer, C.R. The Portuguese searborne empire 1415-1825. New York: Penguin Books, . Text.

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Boxer, C.R. The Portuguese searborne empire 1415-1825. New York: Penguin Books, . Print.