TY  - BOOK
AU  - Ha, Tri, T 
TI  - Digital satellite communications 
SN  - 0-07-100752-0 
U1  - 621.382 5 TRI  
PY  - 1990///
CY  - Tata Mcgraw hill 
PB  - New York 
KW  - SATELLITE COMMUNICATION
ER  -