Dyfyniad APA

Dumas, A. 1., & Coward, D. (1993). The black tulip. New York: Oxford University Press.

Dyfyniad Arddull Chicago

Dumas, Alexandre 1802-1870, và David Coward. The Black Tulip. New York: Oxford University Press, 1993.

Dyfyniad MLA

Dumas, Alexandre 1802-1870, và David Coward. The Black Tulip. New York: Oxford University Press, 1993.

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