Bharadwaj, D. and Saluja, S. 1964. Sporological study of Seam VIII in Raniganj coalfield,Bihar (India). Part II - Distribution of Sporae Dispersea and Correlation. Journal of Palaeosciences. 13, (1-3) (Dec. 1964), 57–73. DOI:https://doi.org/10.54991/jop.1964.679.