Hahn, B. (2020). Technology in the Industrial Revolution. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Hahn, Barbara. Technology in the Industrial Revolution. Cambridge: Cambridge University Press, 2020.
Lua MLA (9ú heag.)Hahn, Barbara. Technology in the Industrial Revolution. Cambridge University Press, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.