Ahvenainen, J. (2011). The history of the Near Eastern telegraphs: Before the First World War. Finnish Academy of Science and Letters.
Chicago-Zitierstil (17. Ausg.)Ahvenainen, Jorma. The History of the Near Eastern Telegraphs: Before the First World War. Helsinki: Finnish Academy of Science and Letters, 2011.
MLA-Zitierstil (9. Ausg.)Ahvenainen, Jorma. The History of the Near Eastern Telegraphs: Before the First World War. Finnish Academy of Science and Letters, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.