Lørdahl, E. (2000). German concentration camps: 1933 - 1945 ; history, related philatelic material, and system of registration of inmate mail. War and Philabooks.
Chicago-Zitierstil (17. Ausg.)Lørdahl, Erik. German Concentration Camps: 1933 - 1945 ; History, Related Philatelic Material, and System of Registration of Inmate Mail. Tårnåsen: War and Philabooks, 2000.
MLA-Zitierstil (9. Ausg.)Lørdahl, Erik. German Concentration Camps: 1933 - 1945 ; History, Related Philatelic Material, and System of Registration of Inmate Mail. War and Philabooks, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.