APA (7th ed.) Zitazioa
Rungé, S. M. Face Lifting by Exercise. Allegro Publishing.
Chicago Style (17th ed.) Zitazioa
Rungé, Senta Maria. Face Lifting by Exercise. Los Angeles, EUA: Allegro Publishing.
MLA (9th ed.) Zitazioa
Rungé, Senta Maria. Face Lifting by Exercise. Allegro Publishing.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.