Robin, G., & Keith Roberts. (1972). British portrait painters. Encyclopaedia Britannia.
シカゴスタイル引用形Robin, Gibson, , Keith Roberts. British Portrait Painters. London: Encyclopaedia Britannia, 1972.
MLA引用形式Robin, Gibson, , Keith Roberts. British Portrait Painters. Encyclopaedia Britannia, 1972.
警告: この引用は必ずしも正確ではありません.