TY  - BOOK
AU  - Dumas, Barry M.
AU  - Schwartz, Morris 
TI  - Principles of computer networks and communication
SN  - 9780131672642
U1  - 004.6 DUM 
PY  - 2009///
CY  - London
PB  - Pearson
KW  - Computer networks
N1  - Includes index
ER  -