Cita APA (7a ed.)

RIES AL. (1989). BOTTOM-UP MARKETING. MCGRAW-HILL.

Cita Chicago Style (17a ed.)

RIES AL. BOTTOM-UP MARKETING. NEW YORK: MCGRAW-HILL, 1989.

Cita MLA (9a ed.)

RIES AL. BOTTOM-UP MARKETING. MCGRAW-HILL, 1989.