Ewing, T. (1883). Opinion of Thomas Ewing: On the validity of the claims of the American Bell Telephone Co., under the patent, to A.G. Bell, of March 7, 1876. Francis & Loutrel.
Chicago-Zitierstil (17. Ausg.)Ewing, Thomas. Opinion of Thomas Ewing: On the Validity of the Claims of the American Bell Telephone Co., Under the Patent, to A.G. Bell, of March 7, 1876. New York: Francis & Loutrel, 1883.
MLA-Zitierstil (9. Ausg.)Ewing, Thomas. Opinion of Thomas Ewing: On the Validity of the Claims of the American Bell Telephone Co., Under the Patent, to A.G. Bell, of March 7, 1876. Francis & Loutrel, 1883.
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