Cita APA (7th ed.)

Paletta, U., & Lenhart, P. T. (2007). There's a ghost on the horizon. Sellier.

Cita Chicago (17th ed.)

Paletta, Ursula, i Peter T. Lenhart. There's a Ghost on the Horizon. Freising: Sellier, 2007.

Cita MLA (8th ed.)

Paletta, Ursula, i Peter T. Lenhart. There's a Ghost on the Horizon. Sellier, 2007.