Walker. The Rise and Decline of the American Century. Cornell University Press.
Dyfyniad Arddull ChicagoWalker. The Rise and Decline of the American Century. Cornell University Press.
Dyfyniad MLAWalker. The Rise and Decline of the American Century. Cornell University Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.