Slywotzky, Adrian J. Value migration : how to think several moves ahead of the competition / Adrian J. Slywotzky. - Boston, Mass. : Harvard Business School Press, c1996. - viii, 327 p. : ill. : 24 cm. ISBN: 0875846327 LCCN: 95020178 LC Class. No.: HG4028.V3 S57 1996 / S57 1996 Dewey Class. No.: 658.4/012