TY  - BOOK
AU  - Stallings, William. 
TI  - Data And Computer Communications 
SN  -  8178084422
U1  - 004.65 
PY  - 2000///.
CY  - Delhi
PB  - Addison Wesley Longman, 
N1  - This book is having Appendix A to C from page no 743 to 779.
ER  -