Cita APA (7th ed.)
Ungers, O., Dal Co, F., & Crespi, G. (2002). Oswald Mathias Ungers: Works and Projects 1991-1998. Milano, Electaarchitecture.
Cita Chicago (17th ed.)
Ungers, O.M, Francesco Dal Co, i Giovanna.(Editor) Crespi. Oswald Mathias Ungers: Works and Projects 1991-1998. New York: Milano, Electaarchitecture, 2002.
Cita MLA (9th ed.)
Ungers, O.M, et al. Oswald Mathias Ungers: Works and Projects 1991-1998. Milano, Electaarchitecture, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.