Gaya APA

MARSTON, C. (2011). Generational Selling Tactics That Work : Quick and Dirty Secrets for Selling to Any Age Group . New Jersey: John Wiley & Sonc. Inc..

Gaya MLA

MARSTON, Cam. "Generational Selling Tactics That Work : Quick and Dirty Secrets for Selling to Any Age Group". New Jersey: John Wiley & Sonc. Inc., 2011. Text.