John Cabot's Voyage of 1497. Newfoundland and Labrador heritage Web Site Project. Memorial University of Newfoundland. November 2010 [2011-08-08]. (原始内容存档于2015-02-12).
John Cabot's Voyage of 1497. Newfoundland and Labrador heritage Web Site Project. Memorial University of Newfoundland. November 2010 [2011-08-08]. (原始内容存档于2015-02-12).