APA Citation

MarketingSherpa, I., & ProQuest (Firm). (2003). Proven online subscription sales tactics: 31 case studies and 25 tactics to get more paid subscribers. Portsmouth, R.I.: MarketingSherpa, Inc..

Chicago Style Citation

MarketingSherpa, Inc., and ProQuest (Firm). Proven Online Subscription Sales Tactics: 31 Case Studies and 25 Tactics to Get More Paid Subscribers. Portsmouth, R.I.: MarketingSherpa, Inc., 2003.

MLA Citation

MarketingSherpa, Inc., and ProQuest (Firm). Proven Online Subscription Sales Tactics: 31 Case Studies and 25 Tactics to Get More Paid Subscribers. Portsmouth, R.I.: MarketingSherpa, Inc., 2003.

Warning: These citations may not always be 100% accurate.