Sommers, Montrose S., 1933- Marketing / Montrose Sommers, James G. Barnes - 10th ed. - New York, McGraw-Hill c2004. - xxii, 566p. : col. ill. ; 29 cm. Bibliographical footnotes, references and Index. ISBN: 0070914389 LCCN: 68022801 Dewey Class. No.: 658.8 / SOM