Dreze, J., Hills, j., & Sen, A. (1991). Social security in developing countries. Clarendon Press ; Oxford University Press ; University Press Ltd..
Chicago Style aipamenaDreze, Jean, john Hills, and Amartya Sen. Social Security in Developing Countries. Oxford, England : New York : Dhaka: Clarendon Press ; Oxford University Press ; University Press Ltd., 1991.
MLA aipamenaDreze, Jean, et al. Social Security in Developing Countries. Clarendon Press ; Oxford University Press ; University Press Ltd., 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.