Schneckenburger, M. (2014). Helmut Schober: Traccia di luce ; trail of light ; Lichtspur.
Cita Chicago (17th ed.)Schneckenburger, Manfred. Helmut Schober: Traccia Di Luce ; Trail of Light ; Lichtspur. Milano, 2014.
Cita MLA (8th ed.)Schneckenburger, Manfred. Helmut Schober: Traccia Di Luce ; Trail of Light ; Lichtspur. 2014.
Atenció: Aquestes cites poden no estar 100% correctes.