Cita APA (7a ed.)

Christensen, H. R., & Gade, B. (1999). Indledning. The Royal Danish Library.

Cita Chicago Style (17a ed.)

Christensen, Hilda Rømer, y Bente Gade. Indledning. The Royal Danish Library, 1999.

Cita MLA (8a ed.)

Christensen, Hilda Rømer, y Bente Gade. Indledning. The Royal Danish Library, 1999.