. . "Analise Quimica Qualitativa." . . . . . "Introductory Qualitative Analysis"@en . . . "Introductory Qualitative Analysis. By W. C. Vosburgh ... Revised edition. (A revision and enlargement of a book of the same title written by Dr. J. Cornog and the present author.)" . . . "Introductory Qualitative Analysis. By W.C. Vosburgh ... Revised edition. (A revision and enlargement of a book of the same title written by Dr. J. Cornog and the present author.)"@en . . . . . . . . "Introductory qualitative analysis" . "Introductory qualitative analysis"@en .