Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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