Boltz, David Ferdinand 1916- Colorimetric determination of nonmetals. - New York : Interscience, 1958. - 372 p. : diagr. ; 23,5 cm. - Chemical analysis, v. VIII . - Chemical analysis, v. VIII . BibliografĂa al final de cada capĂtulo Subjects--Topical Terms: ANALISIS COLORIMETRICO Universal Decimal Class. No.: 543.43