Sowerby, James de Carle. (1836). Descriptive notes respecting the shells figured in Plates XI to XXIII. In: Fitton, W.H. Observations on some of the strata between the Chalk and the Oxford Oolite, in the South-east of England. Transactions of the Geological Society of London, ser. 2. 4(2): 335-349 (Appendix A).
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Sowerby, James de Carle
1836
Descriptive notes respecting the shells figured in Plates XI to XXIII. In: Fitton, W.H. Observations on some of the strata between the Chalk and the Oxford Oolite, in the South-east of England
Transactions of the Geological Society of London, ser. 2