1. Allen, J.R.L., 1968. Current Ripples: Their Relation to Patterns of Water and Sediment Motion. North-Holland, Amsterdam, 433 pp.
2. Allen, J.R.L., 1984. Sedimentary Structures: Their Character and Physical Basis. Elsevier, Amsterdam, 663 pp.
3. Direct illustration of one way sand transport by tidal currents;Belderson;J. Sediment. Petrol.,1969
4. Belderson, R.H., Johnson, M.A., Kenyon, N.H., 1982. Bedforms. In: Stride, A.H. (Ed.), Offshore Tidal Sands: Processes and Deposits. Chapman and Hall, London, pp. 27–57.
5. Belderson, R.H., Kenyon, N.H., Stride, A.H., Stubbs, A.R., 1972. Sonographs of the Seafloor: A Picture Atlas. Elsevier, Amsterdam, 185 pp.