Author:

Smith,A.H.V.

Year:

1957

Title:

The sequence of microspore assemblages associated with the occurrence of Crassidurite in Coal Seams of Yorkshire.

Reference:

Smith,A.H.V. (1957) The sequence of microspore assemblages associated with the occurrence of Crassidurite in Coal Seams of Yorkshire. Geological Magazine Vol. 94 # 5 P. 345- 363

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