000 00291nam a2200121Ia 4500
008 211209s1979 xx 000 0 und d
041 _aeng
082 _a005.1 N79 ZEL/SHA
100 _aZELKOWIT
245 _aPRINCIPLES OF SOFTWARE ENGINEERING AND DESIGN
260 _c1979
300 _a338
999 _c13925
_d13925