Fresenius, C. R. (1843). Elementary instruction in chemical analysis. J. Churchill.
Lua i Stíl Chicago (17ú heag.)Fresenius, C. Remigius. Elementary Instruction in Chemical Analysis. London: J. Churchill, 1843.
Lua MLA (8ú heag.)Fresenius, C. Remigius. Elementary Instruction in Chemical Analysis. J. Churchill, 1843.
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