Dyfyniad APA

Robin, G., & Keith Roberts. (1972). British portrait painters. Encyclopaedia Britannia.

Dyfyniad Arddull Chicago

Robin, Gibson, and Keith Roberts. British Portrait Painters. London: Encyclopaedia Britannia, 1972.

Dyfyniad MLA

Robin, Gibson, and Keith Roberts. British Portrait Painters. Encyclopaedia Britannia, 1972.

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