000 00302nam a22001217a 4500
020 _a9789332555402
082 _bGAM
100 _aGamma Erich
245 _aDesign Patterns : Elements of Reusable object oriented software
260 _aNoida
_bPearson India Education
_c2018
300 _a380p
942 _cBK
999 _c947
_d947