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The Isle of Thanet : the ammonite zone, the depth of the chalk in section, and the continuity of its flint floorings
Bedwell, Francis Alfred
[1874]
"Extracted from the Geological magazine, decade II, vol. I, no. 1, January, 1874".
On ammonite zones in the Isle of Thanet
Bedwell, Francis Alfred
[1874?]
"Reprinted from Proceedings of the Geologists' Association, vol. III, no. 5".