APA (7th ed.) Zitazioa
Hibbard, H. Michelangelo: Painter, sculptor, architect / Howard Hibbard.
Chicago Style (17th ed.) Zitazioa
Hibbard, Howard. Michelangelo: Painter, Sculptor, Architect / Howard Hibbard.
MLA (9th ed.) Zitazioa
Hibbard, Howard. Michelangelo: Painter, Sculptor, Architect / Howard Hibbard.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.