Du Bray, E. A. (1988). Geology of the Silsilah ring complex and associated tin mineralization, Kingdom of Saudi Arabia. United States Government Printing Office.
Chicago-Zitierstil (17. Ausg.)Du Bray, Edward A. Geology of the Silsilah Ring Complex and Associated Tin Mineralization, Kingdom of Saudi Arabia. Washington: United States Government Printing Office, 1988.
MLA-Zitierstil (9. Ausg.)Du Bray, Edward A. Geology of the Silsilah Ring Complex and Associated Tin Mineralization, Kingdom of Saudi Arabia. United States Government Printing Office, 1988.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.