APA Alıntı

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

Chicago Stili Alıntı

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

MLA Alıntı

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