00321nam a2200121Ia 4500008004100000041000800041082001400049100001600063245003800079250001400117260005400131650001400185230711s9999||||xx |||||||||||||| ||und||  aENG  a540bKA-S  aM. M. Uppal 0aTextbook of engineering Chemistry  a1st . Ed.  c1991aNew DelhibNew Age International Publishers  aChemistry