APA (7th ed.) Citation

National Gallery (Great Britain) & Syson, L. (2007). Renaissance Siena: Art for a city. National Gallery.

Chicago Style (17th ed.) Citation

National Gallery (Great Britain) and Luke Syson. Renaissance Siena: Art for a City. London: National Gallery, 2007.

MLA (9th ed.) Citation

National Gallery (Great Britain) and Luke Syson. Renaissance Siena: Art for a City. National Gallery, 2007.

Warning: These citations may not always be 100% accurate.