000 00321nam a2200145Ia 4500
020 _a0273030116
082 _b1278
_a001.642
100 _a"NA"
245 0 _aBasic Systems Analysis
260 _b,ELBS
_aLondon
_c1988
300 _a380
944 _cBK
999 _c629848
_d629848