1. Woodward H. B. , 1904. The water supply of Lincolnshire from underground sources: with records of sinkings and borings. Mem. geol. Surv. U.K.
2. Swinnerton H. H. , and Kent P. E. , 1949. The Geology of Lincolnshire. Lincolnshire Natural History Brochure No. 1 (Lincs. Nat. Hist. Union).
3. The Ammonites of the Spilsby Sandstone, and the Jurassic-Cretaceous boundary;Casey;Proc. geol. Soc.,1962
4. A new Geophysical method for the exploration of undersea coalfields;Maries;The Mining Engineer,1961