Johanek, P. (2022). Dr. Wilfried Ehbrecht (1941-2022). Pro Civitate Austriae.
Cita Chicago (17th ed.)Johanek, Peter. "Dr. Wilfried Ehbrecht (1941-2022)." Pro Civitate Austriae 2022.
Cita MLA (8th ed.)Johanek, Peter. "Dr. Wilfried Ehbrecht (1941-2022)." Pro Civitate Austriae, 2022.
Atenció: Aquestes cites poden no estar 100% correctes.