APA (7th ed.) Citation

Sjöwall, M., & Wahlöö, P. (1975). Cop killer: The story of a crime. Gollancz.

Chicago Style (17th ed.) Citation

Sjöwall, Maj, and Per Wahlöö. Cop Killer: The Story of a Crime. London: Gollancz, 1975.

MLA (8th ed.) Citation

Sjöwall, Maj, and Per Wahlöö. Cop Killer: The Story of a Crime. Gollancz, 1975.

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