APA (7th ed.) Citation

National Gallery of Art (Washington, DC). (1969). A brief guide to the National Gallery of Art of the United States of America, Washington D.C. National Gallery of Art.

Chicago Style (17th ed.) Citation

National Gallery of Art (Washington, DC). A Brief Guide to the National Gallery of Art of the United States of America, Washington D.C. Washington D.C: National Gallery of Art, 1969.

MLA (9th ed.) Citation

National Gallery of Art (Washington, DC). A Brief Guide to the National Gallery of Art of the United States of America, Washington D.C. National Gallery of Art, 1969.