Kranzberg, M., & Pursell, C. W. (1967). Technology in Western civilization. New York : Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Kranzberg, Melvin, agus Carroll W. Pursell. Technology in Western Civilization. New York : Oxford University Press, 1967.
Lua MLA (9ú heag.)Kranzberg, Melvin, agus Carroll W. Pursell. Technology in Western Civilization. New York : Oxford University Press, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.