APA (7th ed.) Citation

Wirths, W., & Simon, G. (1941). Luxemburg. Volk und Reich Verl.

Chicago Style (17th ed.) Citation

Wirths, Werner, and Gustav Simon. Luxemburg. Berlin: Volk und Reich Verl, 1941.

MLA (8th ed.) Citation

Wirths, Werner, and Gustav Simon. Luxemburg. Volk und Reich Verl, 1941.

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