APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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