00336nam a2200133Ia 4500008004100000041000800041082001800049100001400067245004700081260002200128300002100150365001700171700001400188230718s9999    xx            000 0 und d  aeng  a620.0042bBEA  aBeam W.R.  aSystem Engineering Architecture And Design  c1990bMcgraw Hill  dRef 431 E (8161)  cRs.b2401.25  aBeam W.R.