Prodi, E. (2017). SGO 09/01/03, 7. Dr. Rudolf Habelt GmbH.
Cita Chicago (17th ed.)Prodi, E. SGO 09/01/03, 7. Dr. Rudolf Habelt GmbH, 2017.
Cita MLA (9th ed.)Prodi, E. SGO 09/01/03, 7. Dr. Rudolf Habelt GmbH, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.