Harman, G. (2002). Tool-being: Heidegger and the metaphyics of objects. Open Court.
Chicago Style (17th ed.) ZitazioaHarman, Graham. Tool-being: Heidegger and the Metaphyics of Objects. Chicago: Open Court, 2002.
MLA (9th ed.) ZitazioaHarman, Graham. Tool-being: Heidegger and the Metaphyics of Objects. Open Court, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.