TY - BOOK AU - Stamper,David A. TI - Business data communications SN - 0805303022 AV - TK5105 .S734 1989 U1 - 004.6 STA 19 PY - 1989/// CY - Redwood City, Calif. PB - Benjamin/Cummings Pub. Co. KW - Data transmission systems KW - Business enterprises KW - Computer networks KW - Computer Science N1 - Includes bibliographies and index ER -