APA (7th ed.) Citation

Hosmer, J. K. (1902). The history of the Louisiana purchase. Appleton.

Chicago Style (17th ed.) Citation

Hosmer, James K. The History of the Louisiana Purchase. New York: Appleton, 1902.

MLA (9th ed.) Citation

Hosmer, James K. The History of the Louisiana Purchase. Appleton, 1902.