Cita APA (7th ed.)

Harman, G. (2002). Tool-being: Heidegger and the metaphysics of objects / Graham Harman (1. print.). Open Court.

Cita Chicago (17th ed.)

Harman, Graham. Tool-being: Heidegger and the Metaphysics of Objects / Graham Harman. 1. print. Chicago ; La Salle, Ill.: Open Court, 2002.

Cita MLA (8th ed.)

Harman, Graham. Tool-being: Heidegger and the Metaphysics of Objects / Graham Harman. 1. print. Open Court, 2002.