Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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