Thornton, Virden J. Prospecting : the key to sales success / Virden J. Thornton. - Menlo Park, Calif. : Crisp Publications, c1994. - xii, 74 p. : ill. ; 26 cm. - A fifty-minute series book . - Fifty-Minute series . Includes bibliographical references (p. 74). ISBN: 1560522712 LCCN: 93073211 Subjects--Topical Terms: Sales management--Handbooks, manuals, etc. LC Class. No.: HF5438.4 / .T48 1994 Dewey Class. No.: 658.8/1