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Intercalibration and Comparison in Two Laboratories of Measurements Incident to the Determination of the Geological Ages of Rocks
R. D. Evans
, Clark Goodman
, N. B. Keevil
, A. C. Lane
, W. D. Urry
· 1939
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Age Determination of Carboniferous Basic Rocks of Shropshire and Colonsay
W. D. Urry
, Arthur Holmes
· 1941
