Порторико — разлика између измена

* {{Cite book |ref= harv|last=Gonzalez|first=Juan|title=Harvest of Empire: A History of Latinos in America|url=http://books.google.com/books?id=YpBUnwEACAAJ|year=2000|publisher=Penguin Books|isbn=978-0-14-025539-3|pages=60-63}}

* {{Cite book |ref= harv| first = George C.|last=Kohn| title = Encyclopedia of Plague and Pestilence: From Ancient Times to the Present|url=http://books.google.com/?id=tzRwRmb09rgC&pg=PA160| publisher=Infobase Publishing| year = 2008 | pages=160 |id=ISBN 0-8160-6935-2}}

* {{Cite book |ref= harv|last=Abbad y Lasierra|first=Iñigo|title=Historia Geográfica, Civil y Natural de la Isla de San Juan Bautista de Puerto Rico}}

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