Indian Bureau of Mines. Mineral Economics Division. (1987). Report on current status of India's foreign trade in principal industrial minerals & rocks and scope for future. Govt. of India, Ministry of Steel and Mines, Indian Bureau of Mines, Mineral Economics Division.
Cytowanie według stylu Chicago (wyd. 17)Indian Bureau of Mines. Mineral Economics Division. Report on Current Status of India's Foreign Trade in Principal Industrial Minerals & Rocks and Scope for Future. Nagpur: Govt. of India, Ministry of Steel and Mines, Indian Bureau of Mines, Mineral Economics Division, 1987.
Cytowanie według stylu MLA (wyd. 8)Indian Bureau of Mines. Mineral Economics Division. Report on Current Status of India's Foreign Trade in Principal Industrial Minerals & Rocks and Scope for Future. Govt. of India, Ministry of Steel and Mines, Indian Bureau of Mines, Mineral Economics Division, 1987.