Cita APA (7a ed.)

Wrigth, A. J. (1956). United States and Canada: A regional geography (2. ed.). Appleton-Century-Crofts.

Cita Chicago Style (17a ed.)

Wrigth, Alfred. J. United States and Canada: A Regional Geography. 2. ed. New York: Appleton-Century-Crofts, 1956.

Cita MLA (8a ed.)

Wrigth, Alfred. J. United States and Canada: A Regional Geography. 2. ed. Appleton-Century-Crofts, 1956.