1. Correlation problems of metamorphosed Precambrian rocks in Wales and SE Ireland;Baker;Geol. Mag,1969
2. The Proterozoic history of southern Britain;Baker;Proc. Geol. Ass,1971
3. Baker J. W. (1971b) in Geological excursions in South Wales and the Forest of &dcl001; The Precambrian rocks of Pembrokeshire, eds Bassett D. A. Bassett M. G. Geol. Ass., Cardiff.
4. Cantrill T. C. Dixon E. E. L. Thomas H. H. Jones O. T. (1916) The geology of the South Wales coalfield, Pt. 12. The country around Milford. Mem. geol. Surv. U.K.
5. Rubidium–strontium ages and strontium isotope ratios from the igneous rocks of Leicestershire