Ray, D. (1998). Development economics. Princeton University Press.
Chicago-čujuhus (17. p.)Ray, Debraj. Development Economics. Princeton, N.J.: Princeton University Press, 1998.
MLA-čujuhus (9. p.)Ray, Debraj. Development Economics. Princeton University Press, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.