McGonagle, John J. How to use a consultant in your company a managers' and executives' guide John J. McGonagle and Carolyn M. Vella. - New York John Wiley c2001. - x, 278p.; 24cm. ISBN: 471387274 Subjects--Topical Terms: Business consultants; Executive management. Dewey Class. No.: 658.46 / M15H