APA (7th ed.) Citation

National Gallery of Art, Washington, DC, & Metro, J. (1990). The collections of the National Gallery of Art - Systematic catalogue. National Gallery of Art.

Chicago Style (17th ed.) Citation

National Gallery of Art, Washington, DC, and Judy Metro. The Collections of the National Gallery of Art - Systematic Catalogue. Washington: National Gallery of Art, 1990.

MLA (8th ed.) Citation

National Gallery of Art, Washington, DC, and Judy Metro. The Collections of the National Gallery of Art - Systematic Catalogue. National Gallery of Art, 1990.