APA (7th ed.) Citation

The National Gallery (London). (1977). The National Gallery London. Thames and Hudson.

Chicago Style (17th ed.) Citation

The National Gallery (London). The National Gallery London. London: Thames and Hudson, 1977.

MLA (9th ed.) Citation

The National Gallery (London). The National Gallery London. Thames and Hudson, 1977.

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