APA (7th ed.) Citation

Indridason, A., & Guidall, G. (2013). Black skies (Unabridged.). Recorded Books Inc..

Chicago Style (17th ed.) Citation

Indridason, Arnaldur, and George Guidall. Black Skies. Unabridged. Prince Frederick: Recorded Books Inc., 2013.

MLA (8th ed.) Citation

Indridason, Arnaldur, and George Guidall. Black Skies. Unabridged. Recorded Books Inc., 2013.

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