Oltmanns, J. (2016). Rolf Szymanski: 1928-2013.
Cita Chicago (17th ed.)Oltmanns, Janna. Rolf Szymanski: 1928-2013. Berlin, 2016.
Cita MLA (8th ed.)Oltmanns, Janna. Rolf Szymanski: 1928-2013. 2016.
Atenció: Aquestes cites poden no estar 100% correctes.