000 00260nam a2200121Ia 4500
082 _aCA 658.3124 PRA-H
100 _aHARI MOHAN PRASAD
245 _agroup discussion
250 _a2ND
260 _bTata Mc GrwHill -Delhi
_c2005
300 _a0
942 _cBK
999 _c12928
_d12928