Friedman, H. J. (2012). No thanks, I'm just looking!: Sales techniques for turning shoppers into buyers. Wiley.
Chicago Style (17th ed.) ZitazioaFriedman, Harry J. No Thanks, I'm Just Looking!: Sales Techniques for Turning Shoppers into Buyers. Hoboken, N.J.: Wiley, 2012.
MLA (9th ed.) ZitazioaFriedman, Harry J. No Thanks, I'm Just Looking!: Sales Techniques for Turning Shoppers into Buyers. Wiley, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.