00334nam a2200145   450000100060000000300030000600500170000900800410002603500190006703500180008605000200010410000220012424500200014626000220016619842UR20220427164704.0061103|||||||||||||||||||||||||||||||| d  a(janium) 19831  a(janium)19830 4aQD31b.T45 19771 aTimm, John Arrend10aQuimica general  bMcGraw Hillc1977