Source Information
Bell, Alexander Melville
,
Explanatory lecture on visible speech : the science of universal alphabetics ; delivered before the College of Preceptors, Feb. 9, 1870
,
1870
Digitized copy:
Landesbibliothek Mecklenburg-Vorpommern, Schwerin
Digitized by:
Max Planck Institute for the History of Science
Copyright:
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images
)
Landesbibliothek Mecklenburg-Vorpommern, Schwerin
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