Cita APA (7th ed.)
Piper, P. (1891). Die Nibelungen (Nibelungenlied): Bearb. v. Paul Piper. Spemann.
Cita Chicago (17th ed.)
Piper, Paul. Die Nibelungen (Nibelungenlied): Bearb. V. Paul Piper. Berlin, Stuttgart: Spemann, 1891.
Cita MLA (9th ed.)
Piper, Paul. Die Nibelungen (Nibelungenlied): Bearb. V. Paul Piper. Spemann, 1891.
Atenció: Aquestes cites poden no estar 100% correctes.