Prasad, M., E. Khare, K. Ambwani, and S. K. Singh. “Palynological Studies in the Lower Siwalik Sediments of Nahan, Himachal Pradesh, India”. Journal of Palaeosciences, vol. 60, no. (1-2), Dec. 2011, pp. 323-3, doi:10.54991/jop.2011.179.