Cita APA (7a ed.)

Adams, C. C. (1911). A text-book of commercial geography. D. Appleton and Company.

Cita Chicago Style (17a ed.)

Adams, Cyrus C. A Text-book of Commercial Geography. New York: D. Appleton and Company, 1911.

Cita MLA (9a ed.)

Adams, Cyrus C. A Text-book of Commercial Geography. D. Appleton and Company, 1911.