N., N. „Longrigg, Stephan Hemsley: Oil in the Middle East. Its Discovery and Development“. Südost-Forschungen 1, no. 1 (November 30, 2021): 256–256. Zugegriffen November 23, 2024. http://bsb0sit-zepweb01.bsb.lrz.de/portal/index.php/sof/article/view/13171.