TY  - BOOK
AU  - SEYER,Martin D.
TI  - RS-232 made easy: connecting, computers, printers, terminals and modems 
SN  - 0137834721
PY  - 1984///
CY  - Englewood Cliffs
PB  - Prentice-Hall
UR  - http://koha.tu.koszalin.pl/cgi-bin/koha/opac-detail.pl?biblionumber=23797
ER  -