Blake, Robert Rogers The grid for sales excellence benchmarks for effective salesmanship [by] Robert R. Blake [and] Jane Srygley Mouton. - New York McGraw-Hill [1970] - ix, 209 p. 23 cm. Includes bibliographical references. LCCN: 71104737 Subjects--Topical Terms: Selling LC Class. No.: HF5438 / .B663 Dewey Class. No.: 658.85