MarketingSherpa, Inc, & ebrary, Inc. (2003). Proven online ad sales tactics: Practical know-how from profitable web and newsletter publishers. MarketingSherpa, Inc..
Chicago Style (17th ed.) CitationMarketingSherpa, Inc, and Inc ebrary. Proven Online Ad Sales Tactics: Practical Know-how from Profitable Web and Newsletter Publishers. Portsmouth, R.I.: MarketingSherpa, Inc., 2003.
MLA (9th ed.) CitationMarketingSherpa, Inc, and Inc ebrary. Proven Online Ad Sales Tactics: Practical Know-how from Profitable Web and Newsletter Publishers. MarketingSherpa, Inc., 2003.
Warning: These citations may not always be 100% accurate.