International Labour Office. (1995). Sources and methods: Labour statistics (2nd ed.). International Labour Office.
Cita Chicago (17th ed.)International Labour Office. Sources and Methods: Labour Statistics. 2nd ed. Geneva: International Labour Office, 1995.
Cita MLA (9th ed.)International Labour Office. Sources and Methods: Labour Statistics. 2nd ed. International Labour Office, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.