Tomasson, R. F. (1980). Iceland: The first new society. University of Minnesota Press.
Dyfyniad Arddull ChicagoTomasson, Richard F. Iceland: The First New Society. Minneapolis: University of Minnesota Press, 1980.
Dyfyniad MLATomasson, Richard F. Iceland: The First New Society. University of Minnesota Press, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.