(1956). Report of the regional coal survey station at Bilaspur: (M. P., V. P., & Orissa Coalfields) for the period march 1955 to february 1956. Jharia: Kamala Press.
Παραπομπή Chicago StyleReport of the Regional Coal Survey Station At Bilaspur: (M. P., V. P., & Orissa Coalfields) for the Period March 1955 to February 1956. Jharia: Kamala Press, 1956.
Παραπομπή MLAReport of the Regional Coal Survey Station At Bilaspur: (M. P., V. P., & Orissa Coalfields) for the Period March 1955 to February 1956. Jharia: Kamala Press, 1956.
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