Tudor, W. (1820). Letters on the eastern states. Kirk & Mercein.
Chicago Style aipamenaTudor, William. Letters on the Eastern States. New-York: Kirk & Mercein, 1820.
MLA aipamenaTudor, William. Letters on the Eastern States. Kirk & Mercein, 1820.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.