Não informado. (2011). Occupational Wages and Hours of Work and Retail Food Prices. International Labour Office.
Chicago-referens (17:e uppl.)Não informado. Occupational Wages and Hours of Work and Retail Food Prices. Geneva, Suíça: International Labour Office, 2011.
MLA-referens (8:e uppl.)Não informado. Occupational Wages and Hours of Work and Retail Food Prices. International Labour Office, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.