Heiser, J. (2007). Condor: A Poster project by Henrik Håkansson. frieze.
Cita Chicago (17th ed.)Heiser, Jörg. "Condor: A Poster Project by Henrik Håkansson." Frieze 2007.
Cita MLA (8th ed.)Heiser, Jörg. "Condor: A Poster Project by Henrik Håkansson." Frieze, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.