Edison, T. A., Andrews, M., Israel, P., Nier, K. A., Rosenberg, R. A., & Jenkins, R. (2014). The Papers of Thomas A. Edison: From Workshop to Laboratory, June 1873-March 1876. Project Muse.
Lua i Stíl Chicago (17ú heag.)Edison, Thomas A., Melodie Andrews, Paul Israel, Keith A. Nier, Robert A. Rosenberg, agus Reese Jenkins. The Papers of Thomas A. Edison: From Workshop to Laboratory, June 1873-March 1876. Baltimore, Maryland: Project Muse, 2014.
Lua MLA (9ú heag.)Edison, Thomas A., et al. The Papers of Thomas A. Edison: From Workshop to Laboratory, June 1873-March 1876. Project Muse, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.