APA (7th ed.) Citation

Ries , A. &. (1990). Bottom-up marketing. Penguin.

Chicago Style (17th ed.) Citation

Ries , Al &Trout. Bottom-up Marketing. New York: Penguin, 1990.

MLA (9th ed.) Citation

Ries , Al &Trout. Bottom-up Marketing. Penguin, 1990.