APA (7th ed.) Citation

Sereny, G. (1995). Into that darkness: From mercy killing to mass murder. London: PIMLICO.

Chicago Style (17th ed.) Citation

Sereny, Gitta. Into That Darkness: From Mercy Killing to Mass Murder. London: PIMLICO, 1995.

MLA (8th ed.) Citation

Sereny, Gitta. Into That Darkness: From Mercy Killing to Mass Murder. London: PIMLICO, 1995.

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