APA (7th ed.) Citation

National Gallery (Great Britain). (1968). Summary catalogue 1958. National Gallery.

Chicago Style (17th ed.) Citation

National Gallery (Great Britain). Summary Catalogue 1958. London: National Gallery, 1968.

MLA (9th ed.) Citation

National Gallery (Great Britain). Summary Catalogue 1958. National Gallery, 1968.

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