APA (7th ed.) Citation

Lørdahl, E. German concentration camps: 1933 - 1945 ; history, related philatelic material, and system of registration of inmate mail. War and Philabooks.

Chicago Style (17th ed.) Citation

Lørdahl, Erik. German Concentration Camps: 1933 - 1945 ; History, Related Philatelic Material, and System of Registration of Inmate Mail. Tårnåsen: War and Philabooks.

MLA (8th ed.) Citation

Lørdahl, Erik. German Concentration Camps: 1933 - 1945 ; History, Related Philatelic Material, and System of Registration of Inmate Mail. War and Philabooks.

Warning: These citations may not always be 100% accurate.