Marston, C. (2011). Generational selling tactics that work: Quick and dirty secrets for selling to any age group. Hoboken, New Jersey: John Wiley and Sons.
استشهاد بنمط شيكاغوMarston, Cam. Generational Selling Tactics That Work: Quick and Dirty Secrets for Selling to Any Age Group. Hoboken, New Jersey: John Wiley and Sons, 2011.
MLA استشهادMarston, Cam. Generational Selling Tactics That Work: Quick and Dirty Secrets for Selling to Any Age Group. Hoboken, New Jersey: John Wiley and Sons, 2011.
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