Drahos, P. (1996). A philosophy of intellectual property. Ashgate.
Chicago Style aipamenaDrahos, Peter. A Philosophy of Intellectual Property. Hants: Ashgate, 1996.
MLA aipamenaDrahos, Peter. A Philosophy of Intellectual Property. Ashgate, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.