Marston, Cam. Generational selling tactics that work : quick and dirty secrets for selling to any age group / Secrets for selling to any age group Cam Marston. - Hoboken, N.J. : John Wiley, c2011. - xiii, 241 p. ; 24 cm. ISBN: 9781118018385 (hbk.) 1118018389 (hbk.) Subjects--Topical Terms: Selling.Age groups. Dewey Class. No.: 658.85 / MAR 2011