Não informado. (2011). Occupational Wages and Hours of Work and Retail Food Prices. International Labour Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Occupational Wages and Hours of Work and Retail Food Prices. Geneva, Suíça: International Labour Office, 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Occupational Wages and Hours of Work and Retail Food Prices. International Labour Office, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.