Williams. Listen to the Poet. University of Massachusetts Press.
Dyfyniad Arddull ChicagoWilliams. Listen to the Poet. University of Massachusetts Press.
Dyfyniad MLAWilliams. Listen to the Poet. University of Massachusetts Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.