Black, J. (2008). The secret history of the world. Quercus.
Chicago Style aipamenaBlack, Jonathan. The Secret History of the World. London: Quercus, 2008.
MLA aipamenaBlack, Jonathan. The Secret History of the World. Quercus, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.