Não informado. (2011). Occupational Wages and Hours of Work and Retail Food Prices. International Labour Office.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Occupational Wages and Hours of Work and Retail Food Prices. Geneva, Suíça: International Labour Office, 2011.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Occupational Wages and Hours of Work and Retail Food Prices. International Labour Office, 2011.
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