Cita APA (7a ed.)

MarketingSherpa, Inc, & ebrary, Inc. (2003). Proven online ad sales tactics: Practical know-how from profitable web and newsletter publishers. MarketingSherpa, Inc..

Cita Chicago Style (17a ed.)

MarketingSherpa, Inc, y Inc ebrary. Proven Online Ad Sales Tactics: Practical Know-how from Profitable Web and Newsletter Publishers. Portsmouth, R.I.: MarketingSherpa, Inc., 2003.

Cita MLA (9a ed.)

MarketingSherpa, Inc, y Inc ebrary. Proven Online Ad Sales Tactics: Practical Know-how from Profitable Web and Newsletter Publishers. MarketingSherpa, Inc., 2003.