Headrick, D. R. (2009). Technology: A world history. Oxford University Press.
Chicago Style (17th ed.) ZitazioaHeadrick, Daniel R. Technology: A World History. Oxford ; New York: Oxford University Press, 2009.
MLA (9th ed.) ZitazioaHeadrick, Daniel R. Technology: A World History. Oxford University Press, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.