Yadav, R. 1988. Some more fossil woods from the Lower Siwalik sediments of Kalagarh, Uttar Pradesh and Nalagarh, Himachal Pradesh. Journal of Palaeosciences. 37, (1-3) (Dec. 1988), 52–62. DOI:https://doi.org/10.54991/jop.1988.1600.