Ravenhill, J. (1986). Africa in economic crisis. Columbia University Press.
Dyfyniad Arddull ChicagoRavenhill, John. Africa in Economic Crisis. New York: Columbia University Press, 1986.
Dyfyniad MLARavenhill, John. Africa in Economic Crisis. Columbia University Press, 1986.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.