TY  - BOOK
AU  - Schafer,Werner
AU  - An de Meulen,Helmut
TI  - Systems network architecture
SN  - 0201565331
U1  - TK/5105.5 
PY  - 1992///
CY  - England
PB  - Addison-Wesley Publishing Co Inc
KW  - SNA (Computer network architecture).
ER  -