00290nam a2200121Ia 4500008004100000100003500041245003000076260001800106300000800124650001400132942000700146999001500153190216s9999||||xx |||||||||||||| ||und||  a"Ghatak P K,Bandyopadhyay A K" 0aPractical Diary Chemistry  bKalyani Pub:-  a291  aChemistry  cBK  c3450d3450