1. British Admiralty Charts 115, 1409, 1954, 2173, 2182a, 2182b, 2182c, 2254, 2419, 2424, 2446, 2675a, 2675b, 2679.
2. The submarine contours around the Orkneys;FLETT;Trans. Edinb. geol. Soc,1920
3. Coastal and submarine features around the Shetland islands
4. Ice Front in the North Sea
5. GEORGE T. N. 1964. The geological growth of Scotland. In Craig G. Y. , editor, The Geology of Scotland, Edinburgh, 1â48.