TY  - BOOK
AU  - Forouzan,Behrouz A.
AU  - Coombs,Catherine
AU  - Fegan,Sophia Chung
TI  - Introduction to data communication and networking / 
SN  - 0256230447   
PY  - 1998///.
CY  - Boston
PB  - McGraw-Hill, 
KW  - Computer networks
KW  - Data transmission systems
N1  - Includes index; Includes questions and answers
ER  -