Beckman, Theodore N., 1894- Wholesaling, principles and practice, [Book /] by Theodore N. Beckman and Nathanael H. Engle. - Rev ed. - New York, : Ronald Press Co., 1937. - xvi, 628 p. : illus. ; 24 cm. Bibliographical footnotes. All age. Subjects--Topical Terms: Wholesale trade.Wholesale trade--United States. Dewey Class. No.: 381.2 National Library of Medicine Call No.: / BW