Dyfyniad APA

Bryan. The Price of Permanence. University of Georgia Press.

Dyfyniad Arddull Chicago

Bryan. The Price of Permanence. University of Georgia Press.

Dyfyniad MLA

Bryan. The Price of Permanence. University of Georgia Press.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.