1. The concealed coalfield of Yorkshire and Nottinghamshire;Edwards;Mem. Geol. Surv. U.K.,1951
2. Falcon N. L. Kent P. E. , 1960. Geological results of petroleum exploration in Britain, 1945–1957. Mem. Geol. Soc. Lond., No. 2, 56 pp.
3. The age of the paroxysmal Variscan orogeny in England;Fitch;Q. Jl. Geol. Soc. Lond.,1964
4. Carboniferous-Permian igneous rocks;Francis,1965
5. The Carboniferous Period;Francis;Q. Jl. Geol. Soc. Lond.,1964