RIES AL. (1986). MARKETING WAREFARE. PLUME BOOK.
Cita Chicago (17th ed.)RIES AL. MARKETING WAREFARE. NEW YORK: PLUME BOOK, 1986.
Cita MLA (9th ed.)RIES AL. MARKETING WAREFARE. PLUME BOOK, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.