Cita APA (7a ed.)

Ries, A. (1989). Bottom-up marketing / by Al Ries and Jack Trout. McGraw-Hill.

Cita Chicago Style (17a ed.)

Ries, Al. Bottom-up Marketing / by Al Ries and Jack Trout. New York: McGraw-Hill, 1989.

Cita MLA (9a ed.)

Ries, Al. Bottom-up Marketing / by Al Ries and Jack Trout. McGraw-Hill, 1989.