Gray, T. (1971). Correspondence. V3- 1766-1771. Oxford University Press.
Chicago Style aipamenaGray, Thomas. Correspondence. V3- 1766-1771. London: Oxford University Press, 1971.
MLA aipamenaGray, Thomas. Correspondence. V3- 1766-1771. Oxford University Press, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.