van der Heiden. Ontology after Ontotheology. Duquesne University Press.
Lua i Stíl Chicago (17ú heag.)van der Heiden. Ontology After Ontotheology. Duquesne University Press.
Lua MLA (9ú heag.)van der Heiden. Ontology After Ontotheology. Duquesne University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.