Vertical marketing systems / Edited by Louis P. Bucklin. Symposium on Vertical Market Systems, Northwestern University, 1968. Bucklin, Louis P., ed. Marketing Congresses. HF5415.2 .S9 658.8 BUV Includes bibliographical references. Glenview, Ill. : Scott Foresman, 1970. 1970. 1970 Text 218 p. eng