APA (7th ed.) Citation

Brigham, A. P. (1923). Commercial geography (Rev. ed., with questions.). Ginn.

Chicago Style (17th ed.) Citation

Brigham, Albert Perry. Commercial Geography. Rev. ed., with questions. Boston, New York: Ginn, 1923.

MLA (9th ed.) Citation

Brigham, Albert Perry. Commercial Geography. Rev. ed., with questions. Ginn, 1923.