00518     2200181   4500001002100000005001500021035002000036008004100056245010300097100001500200260002000215300002200235020001500257084001700272082001100289650002200300990001400322INLIS00000000000055720260226094645  a0010-0317000555260226                           0      1 aAnalytical absorption spectrophotometry in the visible and ultraviolet the principles /cL. Sommer1 aSommer, L.  bElsevier,c1989  a311 hlm. ;c23 cm  a0444988823  a535.84 Som a  a535.84  aAnalisis spektrum  a084396412