Cita APA (7th ed.)
Petzold, C., Fromm, H., Böhler, B., Will, S., Hoss, N., Zehrfeld, R., & Waschke, M. Barbara =: Barbara.
Cita Chicago (17th ed.)
Petzold, Christian, Hans Fromm, Bettina Böhler, Stefan Will, Nina Hoss, Ronald Zehrfeld, i Mark Waschke. Barbara =: Barbara.
Cita MLA (9th ed.)
Petzold, Christian, et al. Barbara =: Barbara.
Atenció: Aquestes cites poden no estar 100% correctes.