00250nam a2200097Ia 4500008004000000082001600040100003400056245002700090260002300117300001200140210210b1983 xxu||||| |||| 00| 0 eng d a001.61 DANB aDANIELS (A) and YEATES (Don). aBasic systems analysis aLondonbELBSc1983 axii,257