Cita APA (7a ed.)

Carlson, L., & Philbrick, A. K. (1958). Geography and world politics ([5th printing].). Prentice-Hall.

Cita Chicago Style (17a ed.)

Carlson, Lucile, y Allen K. Philbrick. Geography and World Politics. [5th printing]. Englewood Cliffs, N.J.: Prentice-Hall, 1958.

Cita MLA (9a ed.)

Carlson, Lucile, y Allen K. Philbrick. Geography and World Politics. [5th printing]. Prentice-Hall, 1958.