Não informado. (1970). Education for Development. University College Cardiff, Faculty of Education.
Citação do estilo Chicago (17ª ed.)Não informado. Education for Development. Cardiff, Inglaterra: University College Cardiff, Faculty of Education, 1970.
Citação MLA (8ª ed.)Não informado. Education for Development. University College Cardiff, Faculty of Education, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.