APA (7th ed.) Citation

United States. National Gallery of Art, Smart, T., & Gibbon, D. (1979). Art masterpieces of the National Gallery of Art, Washington. Crescent.

Chicago Style (17th ed.) Citation

United States. National Gallery of Art, Ted Smart, and David Gibbon. Art Masterpieces of the National Gallery of Art, Washington. New York: Crescent, 1979.

MLA (9th ed.) Citation

United States. National Gallery of Art, et al. Art Masterpieces of the National Gallery of Art, Washington. Crescent, 1979.