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2. Stratigraphy of Assam valley, India: Discussion;Acharyya;Bull. Am. Assoc. Pet. Geol.,1975
3. The Continental Gondwana and associated marine sequences of Arunachal Pradesh (NEFA), Eastern Himalayas;Acharyya;Himalayan Geol.,1975
4. On the Auranga and Hutur coalfields and the iron ores of Palamau and Torre;Ball;Mem. Geol. Surv. India,1878
5. Triassic floras;Bose,1974