Shut up and sell : tested techniques for closing the sale / Don Sheehan ; foreword by Norman Vincent Peale - Sheehan, Don ([Manila] National Book Store, 1981)
Reprint of the same ed. published by AMACOM, New York
Reprinted under authority of P.D. No. 285 as amended by P.D. Nos. 400 & 1203
Keywords: I. Title; Selling