Ray, D. (1998). Development Economics. John Wiley & Sons.
Chicago-čujuhus (17. p.)Ray, Debraj. Development Economics. New Jersey: John Wiley & Sons, 1998.
MLA-čujuhus (9. p.)Ray, Debraj. Development Economics. John Wiley & Sons, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.