Dyfyniad APA

Metropolitan Museum of Art (New York, N.Y.). (1989). American pastel in the Metropolitan Museum of Art. Metropolitan Museum of Art.

Dyfyniad Arddull Chicago

Metropolitan Museum of Art (New York, N.Y.). American Pastel in the Metropolitan Museum of Art. New York: Metropolitan Museum of Art, 1989.

Dyfyniad MLA

Metropolitan Museum of Art (New York, N.Y.). American Pastel in the Metropolitan Museum of Art. Metropolitan Museum of Art, 1989.

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