Rao, Raja S. C. Bulletins of the geological survey of India coalfields of India part-1, vol. iv Raja S. C. Rao - Calcutta Geological Survey of India 1987 - 336p. illus., index - Series- A, No. 45 . Subjects--Topical Terms: Coal ResourcesCoalfield - India Universal Decimal Class. No.: 552.574(541.4) / RAO