Cita APA (7th ed.)
Hangar Design Group. Hangar Design Group: As I Told You Before : Ideas Not Airships. Skira.
Cita Chicago (17th ed.)
Hangar Design Group. Hangar Design Group: As I Told You Before : Ideas Not Airships. Milán, Italia: Skira.
Cita MLA (9th ed.)
Hangar Design Group. Hangar Design Group: As I Told You Before : Ideas Not Airships. Skira.
Atenció: Aquestes cites poden no estar 100% correctes.