Harrison, K. D. (2007). When languages die: The extinction of the world's languages and the erosion of human knowledge. Oxford University Press.
Dyfyniad Arddull ChicagoHarrison, K. David. When Languages Die: The Extinction of the World's Languages and the Erosion of Human Knowledge. Oxford: Oxford University Press, 2007.
Dyfyniad MLAHarrison, K. David. When Languages Die: The Extinction of the World's Languages and the Erosion of Human Knowledge. Oxford University Press, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.