Cita APA (7th ed.)
Stein, D. (2004). How winners sell: 21 proven strategies to outsell your competition and win the big sale (2nd ed.). Dearborn Trade Publishing.
Cita Chicago (17th ed.)
Stein, Dave. How Winners Sell: 21 Proven Strategies to Outsell Your Competition and Win the Big Sale. 2nd ed. Chicago: Dearborn Trade Publishing, 2004.
Cita MLA (9th ed.)
Stein, Dave. How Winners Sell: 21 Proven Strategies to Outsell Your Competition and Win the Big Sale. 2nd ed. Dearborn Trade Publishing, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.