Alternatives. Vol.14, 1989. Centre for the study of developing socities.
Dyfyniad Arddull ChicagoAlternatives. Vol.14, 1989. USA: Centre for the study of developing socities.
Dyfyniad MLAAlternatives. Vol.14, 1989. Centre for the study of developing socities.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.