Citazione Stile APA (7a Edizione)

Langley, L. D. (1989). America and the Americas: The United States in the western hemisphere. University of Georgia.

Citazione stile Chigago Style (17a edizione)

Langley, Lester D. America and the Americas: The United States in the Western Hemisphere. Atlanta: University of Georgia, 1989.

Citatione MLA (9a ed.)

Langley, Lester D. America and the Americas: The United States in the Western Hemisphere. University of Georgia, 1989.