Dyfyniad APA

U.S. National Gallery of Art. (1941). Book of illustrations. The Gallery.

Dyfyniad Arddull Chicago

U.S. National Gallery of Art. Book of Illustrations. Washington, D.C: The Gallery, 1941.

Dyfyniad MLA

U.S. National Gallery of Art. Book of Illustrations. The Gallery, 1941.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.