TY  - BOOK
AU  - Axelson, Jan.
TI  - Serial port complete: programming and circuits for rs232 and rs485 links and networks
SN  - 8187972033 
U1  - 004.77 
PY  - 1994///
CY  - Mumbai
PB  - Penram International  Publication
KW  - Data processing computer science
ER  -