Langley, L. D. (2010). America and the Americas: The United States in the western hemisphere (2nd ed.). University of Georgia Press.

Langley, Lester D. America and the Americas: The United States in the Western Hemisphere. 2nd ed. Athens: University of Georgia Press, 2010.

Langley, Lester D. America and the Americas: The United States in the Western Hemisphere. 2nd ed. University of Georgia Press, 2010.