Whitman, W. (1998). Leaves of grass. Oxford University Press.
Dyfyniad Arddull ChicagoWhitman, Walt. Leaves of Grass. New York: Oxford University Press, 1998.
Dyfyniad MLAWhitman, Walt. Leaves of Grass. Oxford University Press, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.