Ries, Al. The 22 immutable laws of marketing : violate them at your own risk / Al Ries and Jack Trout. - 1st ed. - New Delhi : Viva Books, 2004 - xii, 143 p. : ill. ; 22 cm. Includes index. ISBN: 9781861976109 Subjects--Topical Terms: Marketing. LC Class. No.: 658.8 / RIE Dewey Class. No.: 658.8 / RIE [ Shelf 67 ]