SCHENK, G. H., HAHN, R. B., & HARTKOPF, A. (1981). Introduction to analytical chemistry.-- ed.2. Allyn and bacon.
Lua i Stíl Chicago (17ú heag.)SCHENK, George H., Richard B. HAHN, agus Arleigh HARTKOPF. Introduction to Analytical Chemistry.-- Ed.2. Boston: Allyn and bacon, 1981.
Lua MLA (9ú heag.)SCHENK, George H., et al. Introduction to Analytical Chemistry.-- Ed.2. Allyn and bacon, 1981.
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