Cita APA (7th ed.)
Gropius, W., & Giedion, S. Walter Gropius: Work and Teamwork. Reinhold.
Cita Chicago (17th ed.)
Gropius, Walter, i Sigfried Giedion. Walter Gropius: Work and Teamwork. Nueva York, EUA: Reinhold.
Cita MLA (9th ed.)
Gropius, Walter, i Sigfried Giedion. Walter Gropius: Work and Teamwork. Reinhold.
Atenció: Aquestes cites poden no estar 100% correctes.