Dworkin, R. M., & Title. (1977). The Philosophy of law. Oxford University Press.
Dyfyniad Arddull ChicagoDworkin, R. M., and Title. The Philosophy of Law. London: Oxford University Press, 1977.
Dyfyniad MLADworkin, R. M., and Title. The Philosophy of Law. Oxford University Press, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.