APA (7th ed.) Citation

Juul, A., Yang, A., Green, K. R., & Occhino, M. Opening by the Editors. The Royal Danish Library.

Chicago Style (17th ed.) Citation

Juul, Anton, Ahrong Yang, Kai Roland Green, and Molly Occhino. Opening by the Editors. The Royal Danish Library.

MLA (9th ed.) Citation

Juul, Anton, et al. Opening by the Editors. The Royal Danish Library.