Dyfyniad APA

London. National Gallery. (1955). Art treasures of the National Gallery, London (2nd ed.). Abrams.

Dyfyniad Arddull Chicago

London. National Gallery. Art Treasures of the National Gallery, London. 2nd ed. New York: Abrams, 1955.

Dyfyniad MLA

London. National Gallery. Art Treasures of the National Gallery, London. 2nd ed. Abrams, 1955.

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