Basalla, G. (1988). The evolution of technology. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Basalla, George. The Evolution of Technology. Cambridge [England] ; New York: Cambridge University Press, 1988.
Lua MLA (8ú heag.)Basalla, George. The Evolution of Technology. Cambridge University Press, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.