APA (7th ed.) Citation

National Gallery & Hendy, P. (1975). The National Gallery London ([4th ed., revised, reprinted].). Thames and Hudson.

Chicago Style (17th ed.) Citation

National Gallery and Philip Hendy. The National Gallery London. [4th ed., revised, reprinted]. London: Thames and Hudson, 1975.

MLA (9th ed.) Citation

National Gallery and Philip Hendy. The National Gallery London. [4th ed., revised, reprinted]. Thames and Hudson, 1975.