Article

Sengupta, S. and Mandal, S.K. and Chakraborty, S.K. and Haque, N. and Dutta, A.K. (1981) Some observations on the depositional characteristics of coals, as reflected by their quality, occurring in the Churi and Ray blocks of north Karanpura coalfield. Journal of Mines, Metals & Fuels, 29 (1&2). pp. 21-25. ISSN 0022-2755