Burrell, R. C. (2005). Copyright exceptions: The digital impact. Cambridge University press.
Chicago Style aipamenaBurrell, Robert Coleman. Copyright Exceptions: The Digital Impact. Cambridge: Cambridge University press, 2005.
MLA aipamenaBurrell, Robert Coleman. Copyright Exceptions: The Digital Impact. Cambridge University press, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.