Hellandsjø, K. (2016). Ultima Thule: Kurt Schwitters and Norway / Karin Hellandsjø (1. edition.). Orfeus.
Cita Chicago (17th ed.)Hellandsjø, Karin. Ultima Thule: Kurt Schwitters and Norway / Karin Hellandsjø. 1. edition. Oslo: Orfeus, 2016.
Cita MLA (8th ed.)Hellandsjø, Karin. Ultima Thule: Kurt Schwitters and Norway / Karin Hellandsjø. 1. edition. Orfeus, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.