Cita APA (7th ed.)

ebrary, Inc, Gaile, G. L., & Willmott, C. J. (2003). Geography in America at the dawn of the 21st century. Oxford University Press.

Cita Chicago (17th ed.)

ebrary, Inc, Gary L. Gaile, i Cort J. Willmott. Geography in America at the Dawn of the 21st Century. Oxford ; New York: Oxford University Press, 2003.

Cita MLA (9th ed.)

ebrary, Inc, et al. Geography in America at the Dawn of the 21st Century. Oxford University Press, 2003.