Heiser, J. (1997). Bohemian Rhapsody: Jörg Heiser on Kai Althoff. frieze.
Cita Chicago (17th ed.)Heiser, Jörg. "Bohemian Rhapsody: Jörg Heiser on Kai Althoff." Frieze 1997.
Cita MLA (8th ed.)Heiser, Jörg. "Bohemian Rhapsody: Jörg Heiser on Kai Althoff." Frieze, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.