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Coccoliths of the Speeton clay and Sutterby Marl
| Black, M. | |
| 1971 | |
| Proc. of the Yorkshire Geol. Soc. vol.38 pp.381-424 | |
| Coccoliths of the Speeton clay and Sutterby Marl |
Black, M., 1971; Coccoliths of the Speeton clay and Sutterby Marl. Proc. of the Yorkshire Geol. Soc. vol.38 pp.381-424