Scharnhorst. The Life of Mark Twain. University of Missouri Press.
Dyfyniad Arddull ChicagoScharnhorst. The Life of Mark Twain. University of Missouri Press.
Dyfyniad MLAScharnhorst. The Life of Mark Twain. University of Missouri Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.