Medd, A. W. (1979). The Upper Jurassic coccoliths from the Haddenham and Gamlingay boreholes (Cambridgeshire, England). Eclogae Geologicae Helvetiae. 72: 19-109.
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Medd, A. W.
1979
The Upper Jurassic coccoliths from the Haddenham and Gamlingay boreholes (Cambridgeshire, England)