De Jasay, A. (1989). Social contract, free ride: A study of the public goods problem. Clarendon Press.
Chicagoスタイル(17版)引用形式De Jasay, Anthony. Social Contract, Free Ride: A Study of the Public Goods Problem. Oxford: Clarendon Press, 1989.
MLA(9版)引用形式De Jasay, Anthony. Social Contract, Free Ride: A Study of the Public Goods Problem. Clarendon Press, 1989.
警告: この引用は必ずしも正確ではありません.