Solution selling : the GridScience approach / Robert R. Blake, Rachel Kelly McKee. Grid science. Blake, Robert R. (Robert Rogers), 1918-2004. McKee, Rachel Kelly. Selling. HF5438.25 .B564 1994 658.85 20 BLS Includes bibliographical references (p. 157-159) and index. Houston : Gulf Pub. Co., c1994. c1994. 1994 Text viii, 160 p. : eng