TY  - BOOK
AU  - Purser, Michael. 
TI  - Data Communications For Programmers 
SN  - 0201129183
U1  - 004.6 
PY  - 1986///
CY  - Wokingham
PB  - Addison-Wesley Publishing Company, 
N1  - This book is having Appendix on page no 160.
ER  -