Cita APA (7a ed.)

RIES AL. (1990). BOTTOM UP MARKETING. PLUME BOOK.

Cita Chicago Style (17a ed.)

RIES AL. BOTTOM UP MARKETING. NEW YORK: PLUME BOOK, 1990.

Cita MLA (9a ed.)

RIES AL. BOTTOM UP MARKETING. PLUME BOOK, 1990.