Harman, G. (2002). Tool-being: Heidegger and the metaphysics of objects / Graham Harman (1. print.). Open Court.
Lua i Stíl Chicago (17ú heag.)Harman, Graham. Tool-being: Heidegger and the Metaphysics of Objects / Graham Harman. 1. print. Chicago ; La Salle, Ill.: Open Court, 2002.
Lua MLA (8ú heag.)Harman, Graham. Tool-being: Heidegger and the Metaphysics of Objects / Graham Harman. 1. print. Open Court, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.