1. A geochemical study of the exinite group maceral alginite, selected from three Permo-Carboniferous torbanites;Allan,1980
2. The oil shales of the Lothians. Structure Area II (Pumpherston);Anderson;Wartime pamphlet Geol. Surv. Gt. Br.,1942
3. Angus and Kincardine;Armstrong,1978
4. The Lower Old Red Sandstone of the Strathmore Region;Armstrong;Rep. Inst. Geol. Sci.,1970
5. Geology of the Perth and Dundee District;Armstrong;Mem. Br. Geol. Surv.,1985