Harman, G. (2002). Tool-being: Heidegger and the metaphysics of objects / Graham Harman (1. print.). Open Court.
Citazione stile Chigago Style (17a edizione)Harman, Graham. Tool-being: Heidegger and the Metaphysics of Objects / Graham Harman. 1. print. Chicago ; La Salle, Ill.: Open Court, 2002.
Citatione MLA (8a ed.)Harman, Graham. Tool-being: Heidegger and the Metaphysics of Objects / Graham Harman. 1. print. Open Court, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.