APA (7th ed.) Citation

Simpson, D., Gimmel, K., Lonka, A., Jay, M., & Grootens, J. (2018). Atlas of the Copenhagens. Ruby Press.

Chicago Style (17th ed.) Citation

Simpson, Deane, Kathrin Gimmel, Anders Lonka, Marc Jay, and Joost Grootens. Atlas of the Copenhagens. Berlin: Ruby Press, 2018.

MLA (9th ed.) Citation

Simpson, Deane, et al. Atlas of the Copenhagens. Ruby Press, 2018.