APA (7th ed.) Citation

Odelberg, M., & Marklund, B. (1983). A key to the doors of history. Statens Historiska Museum.

Chicago Style (17th ed.) Citation

Odelberg, Maj, and Bror Marklund. A Key to the Doors of History. Stockholm: Statens Historiska Museum, 1983.

MLA (9th ed.) Citation

Odelberg, Maj, and Bror Marklund. A Key to the Doors of History. Statens Historiska Museum, 1983.