Author:

Butterworth,M.A.;Millott,J.O.

Year:

1954

Title:

Microspore distribution in the Seams of the North Staffofdshire, Cannock Chase and North Wales Coalfields

Reference:

Butterworth,M.A. et al. (1954) Microspore distribution in the Seams of the North Staffofdshire, Cannock Chase and North Wales Coalfields Transactions of the Institution of Mining Engineers,(London) Vol. 114 # 6 P. 501- 520

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