00298nam a2200109 a 450000500170000000800410001704100080005810000170006624500540008326400400013730000110017720260716125150.0260701s1998    ii            000 0 eng d  aeng1 aArdley, Neil10aInfinity's Science Encyclopaedia /cArdley, Neil. 1aNew Delhi :bInfinity Books,c1998.  a552 p.