Dyfyniad APA
Freeman, C., & Louçã, F. (2001). As time goes by: From the industrial revolutions to the information revolution. Oxford University Press.
Dyfyniad Arddull Chicago
Freeman, Christopher, and Francisco Louçã. As Time Goes by: From the Industrial Revolutions to the Information Revolution. Oxford ; New York: Oxford University Press, 2001.
Dyfyniad MLA
Freeman, Christopher, and Francisco Louçã. As Time Goes by: From the Industrial Revolutions to the Information Revolution. Oxford University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.