APA (7th ed.) Zitazioa

Holroyd, C. (1930). The national gallery-London The central Italian schools. George Newnes.

Chicago Style (17th ed.) Zitazioa

Holroyd, Charles. The National Gallery-London The Central Italian Schools. Londres: George Newnes, 1930.

MLA (9th ed.) Zitazioa

Holroyd, Charles. The National Gallery-London The Central Italian Schools. George Newnes, 1930.