Ray, D. (1998). Development economics. Princeton University Press.
Chicago Style (17th ed.) ZitazioaRay, Debraj. Development Economics. Princeton, N.J.: Princeton University Press, 1998.
MLA (9th ed.) ZitazioaRay, Debraj. Development Economics. Princeton University Press, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.