APA Citation

Doyle, A. C., & Jorgensen, O. (2004). The Red Circle. [Copenhagen]: Aschehoug.

Chicago Style Citation

Doyle, Arthur Conan, and Oskar Jorgensen. The Red Circle. [Copenhagen]: Aschehoug, 2004.

MLA Citation

Doyle, Arthur Conan, and Oskar Jorgensen. The Red Circle. [Copenhagen]: Aschehoug, 2004.

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