Ray, D. (1998). Development economics. Princeton University Press; Oxford University press.
Dyfyniad Arddull ChicagoRay, Debraj. Development Economics. Princeton, N.J. ; New Dhlhi,: Princeton University Press; Oxford University press, 1998.
Dyfyniad MLARay, Debraj. Development Economics. Princeton University Press; Oxford University press, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.