(1921). Der blaue Vogel. Preuss' Institut Graphik GmbH.
Cita Chicago (17th ed.)Der Blaue Vogel. Berlin: Preuss' Institut Graphik GmbH, 1921.
Cita MLA (8th ed.)Der Blaue Vogel. Preuss' Institut Graphik GmbH, 1921.
Atenció: Aquestes cites poden no estar 100% correctes.