1. Allen, J. R. L., 1965, Late Quaternary Niger delta, and adjacent areas: sedimentary environments and litho-facies: Am. Assoc. Petr. Geol. Bull., v. 49, p. 547–600.
2. Allen, J. R. L., 1970a, Physical processes of sedimentation: New York, American Elsevier, 248 p.
3. Allen, J. R. L., 1970b, Sediments of the modern Niger delta: a summary and review, in Morgan, J. P., ed., Deltaic sedimentation, modern and ancient: Tulsa, Okla., Soc. Econ. Paleontologists and Mineralogists Spec. Publ. 15, p. 138–151.
4. Bagnold, R. A., 1963, Mechanics of marine sedimentation, in Hill, M. N., ed., The sea: New York, WileyInterscience, p. 507–525.
5. Bagnold, R. A., 1966, An approach to the sediment transport problem from general physics: U.S. Geol. Survey Prof. Paper 422–1, 37 p.