APA (7th ed.) Citation

Wilkes, G. (1845). The history of Oregon: Geographical and political. W. H. Colyer.

Chicago Style (17th ed.) Citation

Wilkes, George. The History of Oregon: Geographical and Political. New York: W. H. Colyer, 1845.

MLA (9th ed.) Citation

Wilkes, George. The History of Oregon: Geographical and Political. W. H. Colyer, 1845.