Cohen, William A., 1937- How to make it big as a consultant / William A. Cohen. - 4th ed. - New York : American Management Association, c2009. - xix, 332 p. : ill. ; 23 cm. ISBN: 9780814410325 0814410324 Subjects--Topical Terms: Business consultants. LC Class. No.: HD69.C6 / C57 2009 Dewey Class. No.: 001