APA (7th ed.) Citation

National Gallery (Great Britain) & Bomford, D. (2004). Degas / David Bomford ... [et al.]. National Gallery.

Chicago Style (17th ed.) Citation

National Gallery (Great Britain) and David Bomford. Degas / David Bomford ... [et Al.]. London: National Gallery, 2004.

MLA (9th ed.) Citation

National Gallery (Great Britain) and David Bomford. Degas / David Bomford ... [et Al.]. National Gallery, 2004.

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