Sevin, Charles Henry Marketing productivity analysis [by] Charles H. Sevin. - St. Louis McGraw-Hill [1965] - xiii, 137 p. illus. 21 cm. - Perspectives in marketing series . Includes bibliographies. LCCN: 65015929 Subjects--Topical Terms: MarketingAdvertising LC Class. No.: HF5415 / .S394 Dewey Class. No.: 658.8018