Inorganic qualitative analysis; a short course for introductory chemistry [by] Richard B. Hahn [and] Frank J. Welcher. Hahn, Richard Balser, 1913- Welcher, Frank Johnson, 1907- Chemistry, Analytic Qualitative. Chemistry, Inorganic. QD83 .H28 1968 544 HAI Bibliographical footnotes. Princeton, N.J., Van Nostrand [1968] [1968] 1968 Text viii, 326 p. eng