Fletcher , E. (1907). Practical instructions in quantitative assaying with the blowpipe. John Wiley.
Chicago-referens (17:e uppl.)Fletcher , E.L. Practical Instructions in Quantitative Assaying with the Blowpipe. New York: John Wiley, 1907.
MLA-referens (9:e uppl.)Fletcher , E.L. Practical Instructions in Quantitative Assaying with the Blowpipe. John Wiley, 1907.
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