Cita APA (7a ed.)

Hopkins, C. C. (1990). My life in advertising ; & Scientific advertising. NTC Business Books.

Cita Chicago Style (17a ed.)

Hopkins, Claude C. My Life in Advertising ; & Scientific Advertising. Lincolnwood: NTC Business Books, 1990.

Cita MLA (9a ed.)

Hopkins, Claude C. My Life in Advertising ; & Scientific Advertising. NTC Business Books, 1990.