APA (7th ed.) Citation

Olson, J. E., & Bourne, E. G. (1906). The Northmen, Columbus, and Cabot, 985-1503. Charles Scribner's Sons.

Chicago Style (17th ed.) Citation

Olson, Julius E., and Edward Gaylord Bourne. The Northmen, Columbus, and Cabot, 985-1503. New York: Charles Scribner's Sons, 1906.

MLA (9th ed.) Citation

Olson, Julius E., and Edward Gaylord Bourne. The Northmen, Columbus, and Cabot, 985-1503. Charles Scribner's Sons, 1906.