APA (7th ed.) Citation

National Gallery of Art (U.S.). (1968). European paintings and sculpture: Illustrations. [publisher not identified]?].

Chicago Style (17th ed.) Citation

National Gallery of Art (U.S.). European Paintings and Sculpture: Illustrations. Washington, D.C.: [publisher not identified]?], 1968.

MLA (9th ed.) Citation

National Gallery of Art (U.S.). European Paintings and Sculpture: Illustrations. [publisher not identified]?], 1968.

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