APA (7th ed.) Citation

Petersen, W., Protosevich, M., & Lucas, J. (2009). Poseidon. Ringier.

Chicago Style (17th ed.) Citation

Petersen, Wolfgang, Mark Protosevich, and Josh Lucas. Poseidon. [Bratislava]: Ringier, 2009.

MLA (9th ed.) Citation

Petersen, Wolfgang, et al. Poseidon. Ringier, 2009.