1. Gamma-ray Spectrometry of Rocks;Adams,1970
2. British Museum natural radiocarbon measurements III;Barker;Radiocarbon,1961
3. A calibration curve for radiocarbon dates;Clark;Antiquity,1975
4. Weathering of great world soil groups as related to general atmospheric radioactivity;Delwiche,1958
5. The problem of the Galley Hill skeleton;Duckworth,1913