TY  - BOOK
AU  - Halsall, Fred
TI  - Data communications, computer networks, and open systems
SN  - 9780201422931
AV  - TK 5101 .H35 1996  
PY  - 1996///
CY  - Harlow, Essex, England
PB  - Addision-Wesley Publishing Company
KW  - DATA TRANSMISSION SYSTEMS
N1  - Includes bibliographical references and index
ER  -