Cita APA (7a ed.)

Calkins, E. E. (1921). The business of advertising. D. Appleton and Company.

Cita Chicago Style (17a ed.)

Calkins, Earnest Elmo. The Business of Advertising. New York [etc.]: D. Appleton and Company, 1921.

Cita MLA (9a ed.)

Calkins, Earnest Elmo. The Business of Advertising. D. Appleton and Company, 1921.