APA (7th ed.) Citation

National Gallery (Great Britain). (1973). Illustrated general catalogue / the National Gallery. National Gallery.

Chicago Style (17th ed.) Citation

National Gallery (Great Britain). Illustrated General Catalogue / the National Gallery. London: National Gallery, 1973.

MLA (9th ed.) Citation

National Gallery (Great Britain). Illustrated General Catalogue / the National Gallery. National Gallery, 1973.

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