London. National Gallery. (1965). Masterpieces of European painting in the National Gallery, London. National Gallery.
Chicago-referens (17:e uppl.)London. National Gallery. Masterpieces of European Painting in the National Gallery, London. London: National Gallery, 1965.
MLA-referens (9:e uppl.)London. National Gallery. Masterpieces of European Painting in the National Gallery, London. National Gallery, 1965.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.