1. Agarwal S C and Singh I B 1983 Paleoenvironment and trace fossils of the Middle Siwalik sediments, Hardwar, UP; J. Paleontol. Soc. India 28 50–55.
2. Allen J R L 1965 A review of the origin and characteristics of recent alluvial sediments; Sedimentology 5 89–191.
3. Allen J R L 1968 Current Ripples (Amsterdam: North Holland) p. 433.
4. Allen J R L 1984 Sedimentary structures: Their character and physical basis; Development in Sedimentology (Amsterdam: Elsevier) 30 p. 515.
5. Awasthi N and Prasad M 1988 Occurrence of Duabanga in the Siwalik sediments; Geophytology 17 292–294.