Carlson. Words of Wisdom. University of Notre Dame Press.
Dyfyniad Arddull ChicagoCarlson. Words of Wisdom. University of Notre Dame Press.
Dyfyniad MLACarlson. Words of Wisdom. University of Notre Dame Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.