Cita APA (7a ed.)

Ries, A. (1989). Bottom-up Marketing Al Ries, Jack Trout. McGraw-Hill.

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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