TY  - BOOK
AU  - Beam walter .R
TI  - Systems engineering 
SN  - 0070042594
U1  - 620.004 BEA 
PY  - 1990///,
CY  - New york
PB  - Mcgraw hill publishing company
KW  - Introduction
KW  - System architecture
KW  - Elements of system architecture
N1  - Index
ER  -