Olson, J. E., & Bourne, E. G. (1906). The Northmen, Columbus, and Cabot, 985-1503. Charles Scribner's Sons.
Cita Chicago Style (17a ed.)Olson, Julius E., y Edward Gaylord Bourne. The Northmen, Columbus, and Cabot, 985-1503. New York: Charles Scribner's Sons, 1906.
Cita MLA (9a ed.)Olson, Julius E., y Edward Gaylord Bourne. The Northmen, Columbus, and Cabot, 985-1503. Charles Scribner's Sons, 1906.
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