Gaya APA

Marston, C. (2011). Generational selling tactics that work : quick and dirty secrets for selling to any age group . Hoboken, New Jersey: John Wiley & Sons.

Gaya MLA

Marston, Cam. "Generational selling tactics that work : quick and dirty secrets for selling to any age group". Hoboken, New Jersey: John Wiley & Sons, 2011. Text.