Dubreuil. The Intellective Space. University of Minnesota Press.
Dyfyniad Arddull ChicagoDubreuil. The Intellective Space. University of Minnesota Press.
Dyfyniad MLADubreuil. The Intellective Space. University of Minnesota Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.