(1969). A Brief Guide to the National Gallery of Art: Washington D.C. U. S. Government Printing Office.
Chicago-Zitierstil (17. Ausg.)A Brief Guide to the National Gallery of Art: Washington D.C. U. S. Government Printing Office, 1969.
MLA-Zitierstil (8. Ausg.)A Brief Guide to the National Gallery of Art: Washington D.C. U. S. Government Printing Office, 1969.
警告：这些引文格式不一定是100％准确.