00291nam a2200109Ia 4500008004100000082002000041100001400061245004700075250000800122260004300130300000800173240913s9999||||xx |||||||||||||| ||und||  a547.1223  KAL/S  aP S Kalsi 0aStereochemistry Conformation and Mechanism  a6th  bNew Age InternationalaNew Delhic2005  a603