APA (7th ed.) Citation

Paxson, F. L. (1910). The last American frontier. The Macmillan Company.

Chicago Style (17th ed.) Citation

Paxson, Frederic L. The Last American Frontier. New York: The Macmillan Company, 1910.

MLA (9th ed.) Citation

Paxson, Frederic L. The Last American Frontier. The Macmillan Company, 1910.