TY  - BOOK
AU  - Halsall, Fred. 
TI  - Data Communications Computer Networks and Open Systems 
SN  - 8178080982
U1  - 004.6 
PY  - 1996///
CY  - Delhi
PB  - Pearson Education Asia, 
N1  - This book is having Appendix A to D from page no 867 to 885 and also having Bibliography on page no 893.
ER  -