Hart. Stamford '76. University of Iowa Press.
Dyfyniad Arddull ChicagoHart. Stamford '76. University of Iowa Press.
Dyfyniad MLAHart. Stamford '76. University of Iowa Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
Hart. Stamford '76. University of Iowa Press.
Dyfyniad Arddull ChicagoHart. Stamford '76. University of Iowa Press.
Dyfyniad MLAHart. Stamford '76. University of Iowa Press.