APA (7th ed.) Zitazioa
Bunyan, J. (2001). The pilgrim's progress. Alex Catalogue.
Chicago Style (17th ed.) Zitazioa
Bunyan, John. The Pilgrim's Progress. Raleigh, NC: Alex Catalogue, 2001.
MLA (9th ed.) Zitazioa
Bunyan, John. The Pilgrim's Progress. Alex Catalogue, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.