Planit, Michael. Operators are standing by : use the power of infomercials and TV marketing to sell your products and keep customers calling / Michael Planit. - New York : McGraw-Hill, c2007. - xvii, 205 p. : iil ; 23 cm. ISBN: 007147028X (pbk.) 9780071470285 (pbk.) LCCN: 2007297968 Subjects--Topical Terms: Direct marketing. LC Class. No.: HF5415.126 / .P57 2007 Dewey Class. No.: 658.8/72