APA (7th ed.) Citation

Forrest, B. (2015). A soldier of shadows. [CreateSpace Independent Publishing Platform].

Chicago Style (17th ed.) Citation

Forrest, Bella. A Soldier of Shadows. [United States?]: [CreateSpace Independent Publishing Platform], 2015.

MLA (8th ed.) Citation

Forrest, Bella. A Soldier of Shadows. [CreateSpace Independent Publishing Platform], 2015.

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