Edison :
Dyer, Frank Lewis, 1870-1941
Edison : His Life and Inventions [electronic resource] / Frank Lewis Dyer - Project Gutenberg, 2006 - Project Gutenberg 820 .
1910
Public domain in the USA.
Electronic text
Inventors -- United States -- Biography Edison, Thomas A. (Thomas Alva), 1847-1931
TK
Edison : His Life and Inventions [electronic resource] / Frank Lewis Dyer - Project Gutenberg, 2006 - Project Gutenberg 820 .
1910
Public domain in the USA.
Electronic text
Inventors -- United States -- Biography Edison, Thomas A. (Thomas Alva), 1847-1931
TK