Card, O. S. (1999). Characters and viewpoint. Writer's Digest Books.
Chicago Style aipamenaCard, Orson Scott. Characters and Viewpoint. Cincinnati: Writer's Digest Books, 1999.
MLA aipamenaCard, Orson Scott. Characters and Viewpoint. Writer's Digest Books, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.