APA (7th ed.) Citation

Holand, H. R. (1958). Explorations in America before Columbus (2nd ed.). Twayne.

Chicago Style (17th ed.) Citation

Holand, Hjalmar Rued. Explorations in America Before Columbus. 2nd ed. New York: Twayne, 1958.

MLA (8th ed.) Citation

Holand, Hjalmar Rued. Explorations in America Before Columbus. 2nd ed. Twayne, 1958.

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