Kranzberg, M., & Pursell, C. W. J. (1967). Technology in western civilisation. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Kranzberg, Melvin, agus Carroll W. Jr Pursell. Technology in Western Civilisation. New York [u.a.]: Oxford University Press, 1967.
Lua MLA (8ú heag.)Kranzberg, Melvin, agus Carroll W. Jr Pursell. Technology in Western Civilisation. Oxford University Press, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.