TY  - BOOK
AU  - Walrand, Jean
TI  - Communication networks: a first course
SN  - 0256088640
U1  - 004.6 
PY  - 1991///
CY  - Boston
PB  - Irwin
KW  - Computer networks
KW  -  Computer communication
N1  - Includes bibliographical references and index
ER  -