APA (7th ed.) Citation

(1993). Helen Frankenthaler prints. National Gallery of Art u.a.

Chicago Style (17th ed.) Citation

Helen Frankenthaler Prints. Washington: National Gallery of Art u.a, 1993.

MLA (9th ed.) Citation

Helen Frankenthaler Prints. National Gallery of Art u.a, 1993.

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