Seed, N. (2014). V4 vengeance delayed: Hitler's last vengeance weapons are going to war. Original Writing Ltd.
Chicago-referens (17:e uppl.)Seed, Nigel. V4 Vengeance Delayed: Hitler's Last Vengeance Weapons Are Going to War. Dublin, Ireland: Original Writing Ltd, 2014.
MLA-referens (9:e uppl.)Seed, Nigel. V4 Vengeance Delayed: Hitler's Last Vengeance Weapons Are Going to War. Original Writing Ltd, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.