| Catholic Philosophy: Presents Zubiri's trilogy The Theological Problem of Man in English translation. This includes "Man and God", "The Philosophical Problem of the History of Religions", and "Christianity." |
| Works by Xavier Zubiri in English: Online translations of several of Zubiri's writings, including his seminal 1962 book, On Essence. |
| Xavier Zubiri's Critique of Classical Philosophy: Paper by Thomas B. Fowler from the 20th World Congress of Philosophy in 1998. Reviews the conceptual grounds on which Zubiri criticizes the Aristotelian tradition. |
| Xavier Zubiri's Critique of Hume's Analysis of Causality: Paper from the Paideia Project by Thomas B. Fowler. |
| Zubiri Foundation: An organization working to increase awareness of Zubiri's thought in the United States. Site provides extensive information about Zubiri's life and thought, as well as organizational news. |