00282nam a2200109Ia 4500008004100000082001200041100001300053245004300066250001200109260004300121300000800164240913s9999||||xx |||||||||||||| ||und||  a547 KAL  aPS Kalsi 0aOrganic Reactions and their Mechanisms  a2nd Ed.  bNew Age InternationalaNew Delhic2002  a650