Effective marketing [microform], L. Rohe Walter. Walter, L. Rohde, 1898- Marketing. Selling. 658.8 WAE Microfilm. New York, N.Y., Columbia University Libraries, 1995. 1 microfilm reel, 35 mm. Filmed; NEH Project (FMEST); 1995. Master negative: 95-82426-10. No. 10 on a reel of 13 titles. New York, London, McGraw-Hill, 1938. 1995. 1938. 1938 Text ix, 381 p. 1 microfilm reel, 35 mm. eng