Kerin, Roger A. Strategic marketing problems : cases and comments / Roger A. Kerin, Robert A. Peterson. - 4th ed. - Boston : Allyn and Bacon, c1987. - xv, 735 p. : ill. ; 25 cm. ISBN: $26.00 020510553X (International ed.) LCCN: 86022180 LC Class. No.: HF5415.135 .K47 1987 / .K47 1987 Dewey Class. No.: 658.8