Maynard, Harold H. 1889-1957. Principles of marketing / by Harold H. Maynard, Walter C. Weidler, Theodore N. Beckman. - 5th.ed. - New York : Ronald Press, [c1927] - ix,792 p. ; 22 cm. Includes bibliographies. Subjects--Topical Terms: Marketing. Dewey Class. No.: 658.8 / MAP 1952