APA (7th ed.) Citation

Sjöwall, M., & Wahlöö, P. (1970). The laughing policeman ([1st American ed.].). Pantheon Books.

Chicago Style (17th ed.) Citation

Sjöwall, Maj, and Per Wahlöö. The Laughing Policeman. [1st American ed.]. New York: Pantheon Books, 1970.

MLA (9th ed.) Citation

Sjöwall, Maj, and Per Wahlöö. The Laughing Policeman. [1st American ed.]. Pantheon Books, 1970.

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