Pussert, A., & Trolp, J. (2009). Ulrich Vogl: Watching the stars (1. ed.). KraskaEckstein Verl..
Cita Chicago (17th ed.)Pussert, Annette, i Julia Trolp. Ulrich Vogl: Watching the Stars. 1. ed. Bremen: KraskaEckstein Verl., 2009.
Cita MLA (8th ed.)Pussert, Annette, i Julia Trolp. Ulrich Vogl: Watching the Stars. 1. ed. KraskaEckstein Verl., 2009.
Atenció: Aquestes cites poden no estar 100% correctes.