Rugo, J. (1999). Bernd Schwarting.
Cita Chicago (17th ed.)Rugo, Jacqueline. Bernd Schwarting. Berlin, 1999.
Cita MLA (8th ed.)Rugo, Jacqueline. Bernd Schwarting. 1999.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)