Style de citation APA (7e éd.)

Ahvenainen, J. (2011). The history of the Near Eastern telegraphs: Before the First World War. Finnish Academy of Science and Letters.

Style de citation Chicago (17e éd.)

Ahvenainen, Jorma. The History of the Near Eastern Telegraphs: Before the First World War. Helsinki: Finnish Academy of Science and Letters, 2011.

Style de citation MLA (9e éd.)

Ahvenainen, Jorma. The History of the Near Eastern Telegraphs: Before the First World War. Finnish Academy of Science and Letters, 2011.