1 "Fișier:Electro-dynamics;_the_direct-current_motor_(IA_electrodynamicsd00wilsuoft).pdf".

Fișier:Electro-dynamics; the direct-current motor (IA electrodynamicsd00wilsuoft).pdf

Internet Archive ID: electrodynamicsd00wilsuoft described at URL: https://archive.org/download/electrodynamicsd00wilsuoft/electrodynamicsd00wilsuoft.pdf...