00255nam a2200109Ia 4500008004100000082001400041100001400055245002200069250000900091260003600100300000900136240913s9999||||xx |||||||||||||| ||und||  a547 GUP/O  aR K Gupta 0aOrganic Chemistry  aNULL  bArihant PrakashanaMeerutc2007  a1072