International Labour Office. (1977). Social and labour practices of multinational enterprises in the petroleum industry. International Labour Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Labour Office. Social and Labour Practices of Multinational Enterprises in the Petroleum Industry. Geneva: International Labour Office, 1977.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Labour Office. Social and Labour Practices of Multinational Enterprises in the Petroleum Industry. International Labour Office, 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.