TY  - GEN
AU  - McClain, Gary R. 
TI  - Open systems interconnection handbook 
SN  - 0070449694
U1  - 004.6 
PY  - 1990///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - Data processing computer science
KW  - Interfacing and communications
ER  -