Coombs, P. H. (1985). The world crisis in education: The view from the eighties. Oxford University Press.
Dyfyniad Arddull ChicagoCoombs, Philip H. The World Crisis in Education: The View from the Eighties. New York: Oxford University Press, 1985.
Dyfyniad MLACoombs, Philip H. The World Crisis in Education: The View from the Eighties. Oxford University Press, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.