Indian National Trade Union Congress & Trivedi, H. N. (1977). Thirty years of the Indian National Trade Union Congress, 1947 to 1977: Review of the services rendered to Indian workers by the INTUC during three decades since its foundation on May 3, 1947. INTUC.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Indian National Trade Union Congress و H. N. Trivedi. Thirty Years of the Indian National Trade Union Congress, 1947 to 1977: Review of the Services Rendered to Indian Workers by the INTUC During Three Decades Since Its Foundation on May 3, 1947. Bombay: INTUC, 1977.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Indian National Trade Union Congress و H. N. Trivedi. Thirty Years of the Indian National Trade Union Congress, 1947 to 1977: Review of the Services Rendered to Indian Workers by the INTUC During Three Decades Since Its Foundation on May 3, 1947. INTUC, 1977.