APA (7th ed.) Citation

Royuela, F., & Bush, P. R. (2016). A bad end. Hispabooks Publishing.

Chicago Style (17th ed.) Citation

Royuela, Fernando, and Peter R. Bush. A Bad End. Madrid, Spain: Hispabooks Publishing, 2016.

MLA (9th ed.) Citation

Royuela, Fernando, and Peter R. Bush. A Bad End. Hispabooks Publishing, 2016.