Não informado. (1960). OECD Economic Surveys. Organization for Economic Co-operation and Development.
Citação do estilo Chicago (17ª ed.)Não informado. OECD Economic Surveys. Paris: Organization for Economic Co-operation and Development, 1960.
Citação MLA (8ª ed.)Não informado. OECD Economic Surveys. Organization for Economic Co-operation and Development, 1960.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.