Futrell, Charles M. Fundamentals of selling : customers for life through service / Charles M. Futrell. - 12th ed. (Int. ed.) - New York : McGraw-Hill Irwin, c2011. - xxxiv, 652 p. : col. ill. ; 25 cm. Includes bibliographical references and index. ISBN: 9780071220804 (pbk.) Subjects--Topical Terms: Selling.