SpringerLink (Online service), Knibbs, E., Boon, J. A., & Gelser, E. (2019). The End of the World in Medieval Thought and Spirituality (1st ed. 2019.). Springer International Publishing : Imprint: Palgrave Macmillan. https://doi.org/10.1007/978-3-030-14965-9

SpringerLink (Online service), Eric Knibbs, Jessica A. Boon, and Erica Gelser. The End of the World in Medieval Thought and Spirituality. 1st ed. 2019. Cham: Springer International Publishing : Imprint: Palgrave Macmillan, 2019. https://doi.org/10.1007/978-3-030-14965-9.

SpringerLink (Online service), et al. The End of the World in Medieval Thought and Spirituality. 1st ed. 2019. Springer International Publishing : Imprint: Palgrave Macmillan, 2019. https://doi.org/10.1007/978-3-030-14965-9.