Não informado. (1960). Main Economic Indicators. Department of Economics and Statistics.
Cita Chicago Style (17a ed.)Não informado. Main Economic Indicators. Paris: Department of Economics and Statistics, 1960.
Cita MLA (8a ed.)Não informado. Main Economic Indicators. Department of Economics and Statistics, 1960.
Precaución: Estas citas no son 100% exactas.