Cita APA (7a ed.)

Ries, A. (1990). Bottom up marketing. Penguin (Plume).

Cita Chicago Style (17a ed.)

Ries, Al. Bottom Up Marketing. New York: Penguin (Plume), 1990.

Cita MLA (9a ed.)

Ries, Al. Bottom Up Marketing. Penguin (Plume), 1990.