00425cam a2200145 a 4500008004100000020001500041100001600056245005200072250001200124260005700136300002200193650002900215700001400244050002100258080626s2008    nyua     d    000 0 eng    a8185185301  aKhan, H. J.02aDictionary of chemistry /cH. J. Khan, S. Khan.  a6th ed.  aNew Delhi :bEPP Books Services Nigeria Ltd.,c2006.  a[356 p.]:bill. ; 0aChemistryvDictionaries.1 aKhan, S..00aQD5b.D4985 2008