Não informado. (2002). Statistics on Occupational Wages and Hours of Work and on Food Prices. International Labour Office.
Chicago-referens (17:e uppl.)Não informado. Statistics on Occupational Wages and Hours of Work and on Food Prices. Geneva, Suíça: International Labour Office, 2002.
MLA-referens (8:e uppl.)Não informado. Statistics on Occupational Wages and Hours of Work and on Food Prices. International Labour Office, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.