APA (7th ed.) Citation

Raoul de Caen, Heimann, C., & Ernst, S. (2011). Radulfi Ardentis Speculum universale: : Libri I-V. Brepols.

Chicago Style (17th ed.) Citation

Raoul de Caen, Claudia Heimann, and Stephan Ernst. Radulfi Ardentis Speculum Universale: : Libri I-V. Turnhout: Brepols, 2011.

MLA (9th ed.) Citation

Raoul de Caen, et al. Radulfi Ardentis Speculum Universale: : Libri I-V. Brepols, 2011.