Lørdahl, E. (2000). German concentration camps, 1933-1945: History, related philatelic material, and system of registration of inmate mail. War and Philabooks.
Chicago ZitierstilLørdahl, Erik. German Concentration Camps, 1933-1945: History, Related Philatelic Material, and System of Registration of Inmate Mail. Tårnåsen: War and Philabooks, 2000.
MLA ZitierstilLørdahl, 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.