Jasay, A. D. (1989). Social contract, free ride: Study of the public-goods problem. Oxfod University Press.
Citazione stile Chigago Style (17a edizione)Jasay, Anthony De. Social Contract, Free Ride: Study of the Public-goods Problem. New York: Oxfod University Press, 1989.
Citatione MLA (9a ed.)Jasay, Anthony De. Social Contract, Free Ride: Study of the Public-goods Problem. Oxfod University Press, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.