APA (7e ed.) Bronvermelding
ebrary, Inc, Gutzman, A. D., & Holland, A. (2002). Top 25 case studies on marketing with email newsletters. MarketingSherpa, Inc..
Chicago (17e ed.) Bronvermelding
ebrary, Inc, Alexis D. Gutzman, en Anne Holland. Top 25 Case Studies on Marketing with Email Newsletters. Portsmouth, R.I.: MarketingSherpa, Inc., 2002.
MLA (9e ed.) Bronvermelding
ebrary, Inc, et al. Top 25 Case Studies on Marketing with Email Newsletters. MarketingSherpa, Inc., 2002.
Let op: Deze citaties zijn niet altijd 100% accuraat.