Dyfyniad APA

Roberts, J. M., & Roberts, J. M. 1. . .. (1999). The illustrated history of the world ([Rev. and expanded ed.].). Oxford University Press.

Dyfyniad Arddull Chicago

Roberts, John Morris, and John Morris 1928- Roberts. The Illustrated History of the World. [Rev. and expanded ed.]. New York: Oxford University Press, 1999.

Dyfyniad MLA

Roberts, John Morris, and John Morris 1928- Roberts. The Illustrated History of the World. [Rev. and expanded ed.]. Oxford University Press, 1999.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.