TY - BOOK AU - Walford,Robert B. TI - Network system architecture SN - 0201524090 AV - HF5548.2 .W2923 1990 U1 - 650/.028/546 20 PY - 1990/// CY - Reading, Mass. PB - Addison-Wesley Pub. Co. KW - Business KW - Communication systems KW - System design KW - Information networks N1 - Includes bibliographical references (p. 367-375) and index ER -