Cita APA (7th ed.)

(1969). A Brief Guide to the National Gallery of Art: Washington D.C. U. S. Government Printing Office.

Cita Chicago (17th ed.)

A Brief Guide to the National Gallery of Art: Washington D.C. U. S. Government Printing Office, 1969.

Cita MLA (8th ed.)

A Brief Guide to the National Gallery of Art: Washington D.C. U. S. Government Printing Office, 1969.