Cita APA (7a ed.)

Aymar, G. C. (1929). An introduction to advertising illustration. Harper & Brothers.

Cita Chicago Style (17a ed.)

Aymar, Gordon C. An Introduction to Advertising Illustration. New York [etc.]: Harper & Brothers, 1929.

Cita MLA (9a ed.)

Aymar, Gordon C. An Introduction to Advertising Illustration. Harper & Brothers, 1929.