APA Citation

Bergreen, L. 1. (2011). Columbus: The four voyages. New York, New York: Viking.

Chicago Style Citation

Bergreen, Laurence 1950-. Columbus: The Four Voyages. New York, New York: Viking, 2011.

MLA Citation

Bergreen, Laurence 1950-. Columbus: The Four Voyages. New York, New York: Viking, 2011.

Warning: These citations may not always be 100% accurate.