Παραπομπή APA

Stevenson, D. (2004). 1914-1918: The history of the First World War. Penguin Books.

Παραπομπή Chicago Style

Stevenson, David. 1914-1918: The History of the First World War. London: Penguin Books, 2004.

Παραπομπή MLA

Stevenson, David. 1914-1918: The History of the First World War. Penguin Books, 2004.