Não informado. (1972). Studies in the history of art. National Gallery of Art.
Chicagoスタイル(17版)引用形式Não informado. Studies in the History of Art. Washington: National Gallery of Art, 1972.
MLA(8版)引用形式Não informado. Studies in the History of Art. National Gallery of Art, 1972.
警告: この引用は必ずしも正確ではありません.