Reagents for qualitative inorganic analysis : (second report of the International Committee on New Analytical Reactions and Reagents of the International Union of Chemistry.). Editors, P.E.Wenger ... and R.Duckert ... joint-authors, C.J. van Nieuwenburg ... and J.Gillis. - Duckert, Roger; Gillis, J.; Nieuwenburg, C. J. van (Cornelis Johannes), 1889-; Wenger, Paul Eugene Etienne (Elsevier, 1948)