India Directorate Gen. of C. (1981). Monthly statistics of the foreign trade of India. Directoral Gen. of Com. Int. & Stat.
芝加哥风格引文India Directorate Gen. of C. Monthly Statistics of the Foreign Trade of India. Calcutta: Directoral Gen. of Com. Int. & Stat, 1981.
MLA引文India Directorate Gen. of C. Monthly Statistics of the Foreign Trade of India. Directoral Gen. of Com. Int. & Stat, 1981.
警告：这些引文格式不一定是100％准确.