Pepicello, W. J., & Green, T. A. (1984). The language of riddles. Ohio State University Press.
Chicago Style aipamenaPepicello, W. J., and Thomas A. Green. The Language of Riddles. Columbus: Ohio State University Press, 1984.
MLA aipamenaPepicello, W. J., and Thomas A. Green. The Language of Riddles. Ohio State University Press, 1984.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.