APA (7th ed.) Citation

Lehmann, M. (1987). Deutschland - 1940. Aktion T4 1939-1945.

Chicago Style (17th ed.) Citation

Lehmann, Maria. "Deutschland - 1940." Aktion T4 1939-1945 1987.

MLA (8th ed.) Citation

Lehmann, Maria. "Deutschland - 1940." Aktion T4 1939-1945, 1987.

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