Author:

Watson,J.;Batten,D.J.

Year:

1990

Title:

A revision of the English Wealden flora, Li: Equisetales.

Reference:

Watson,J. et al. (1990) A revision of the English Wealden flora, Li: Equisetales. British Museum (Natural History) Geology, Bulletin Vol. 46 # 1 P. 37- 60

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