TY  - BOOK
AU  - Hutchinson,Sarah E.
AU  - Sawyer,Stacey C.
TI  - Computers communications and information: a users introduction 
U1  - 621.382 
PY  - 2000///
CY  - New Delhi
PB  - Tata McGraw-Hill Education
KW  - Telecommunication
KW  - Digital communications
N1  - Includes index
ER  -