Organisation for Economic Co-operation and Development. (1968). Development assistance: Efforts and policies of the members of the Development Assistance Committee. Paris: Organisation for Economic Co-operation and Development.
Dyfyniad Arddull ChicagoOrganisation for Economic Co-operation and Development. Development Assistance: Efforts and Policies of the Members of the Development Assistance Committee. Paris: Organisation for Economic Co-operation and Development, 1968.
Dyfyniad MLAOrganisation for Economic Co-operation and Development. Development Assistance: Efforts and Policies of the Members of the Development Assistance Committee. Paris: Organisation for Economic Co-operation and Development, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.