Ryan, A. (1988). The Penguin book of vampire stories. Penguin.
Chicago Style aipamenaRyan, Alan. The Penguin Book of Vampire Stories. London: Penguin, 1988.
MLA aipamenaRyan, Alan. The Penguin Book of Vampire Stories. Penguin, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.