Geuss, R. (2001). Public goods, private goods. Princeton University Press.
Dyfyniad Arddull ChicagoGeuss, Raymond. Public Goods, Private Goods. Princeton, NJ: Princeton University Press, 2001.
Dyfyniad MLAGeuss, Raymond. Public Goods, Private Goods. Princeton University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.