League of Nations. Committee of Statistical Experts. (1949). Indices of industrial production: Report drawn up by the Committee of Statistical Experts. report drawn up by the Sub-commitee on Balance of Payments Statistics of the League of Nations Committee of Statistical Experts. United Nations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)League of Nations. Committee of Statistical Experts. Indices of Industrial Production: Report Drawn Up by the Committee of Statistical Experts. Report Drawn Up by the Sub-commitee on Balance of Payments Statistics of the League of Nations Committee of Statistical Experts. Geneva: United Nations, 1949.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)League of Nations. Committee of Statistical Experts. Indices of Industrial Production: Report Drawn Up by the Committee of Statistical Experts. Report Drawn Up by the Sub-commitee on Balance of Payments Statistics of the League of Nations Committee of Statistical Experts. United Nations, 1949.