Guerre européenne 1914-1919 : médailles ... : Suppléments / ... J. Schulman Platen van uniformen van het Fransche, Engelsche, Duitsche, en Belgische leger Congressional medal of honor the distinguished service cross and the distinguished service medal; issued by the War Department 1919 elite series U-boat crews : 1914-45 / Gordon Williamson ; ill. by D. Pavlovic
