Horse sense : the key to success is finding a horse to ride / Al Ries and Jack Trout. Ries, Al. Trout, Jack. jt. aut. Success in business. Marketing. HF5386 .R5115 1991 620.14 20 RIH New York ; McGraw-Hill, c1991. c1991. 1991 Text vii, 231 p. ; eng