Hartu hau. : The Papers of Thomas A. Edison : From Workshop to Laboratory, June 1873-March 1876 / edited by Robert A. Rosenberg, Paul B. Israel, Keith A. Nier, and Melodie Andrews; editor Reese Jenkins.

Izenburua : The Papers of Thomas A. Edison : From Workshop to Laboratory, June 1873-March 1876 / edited by Robert A. Rosenberg, Paul B. Israel, Keith A. Nier, and Melodie Andrews; editor Reese Jenkins.

Sailkapena : Ez dago telefono-zenbakirik.

Egoera : Ezezaguna