APA (7th ed.) Citation

Friedlander, H. (1998). The T4 killers: Berlin, Lublin, San Sabba. The holocaust and history.

Chicago Style (17th ed.) Citation

Friedlander, Henry. "The T4 Killers: Berlin, Lublin, San Sabba." The Holocaust and History 1998.

MLA (8th ed.) Citation

Friedlander, Henry. "The T4 Killers: Berlin, Lublin, San Sabba." The Holocaust and History, 1998.

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