Haarmann, J. (2003). Johannes Wohnseifer. ARTinvestor.
Cita Chicago (17th ed.)Haarmann, Jana. "Johannes Wohnseifer." ARTinvestor 2003.
Cita MLA (8th ed.)Haarmann, Jana. "Johannes Wohnseifer." ARTinvestor, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.