Sah, S. and Dutta, S. 1967. Palynostratigraphy of the Tertiary Sedimentary Formations of Assam: 2. Stratigraphic significance of Spores and Pollen in the Tertiary Succession of Assam. Journal of Palaeosciences. 16, (1-3) (Dec. 1967), 177–195. DOI:https://doi.org/10.54991/jop.1967.518.