Citazione Stile APA (7a Edizione)

Penny, N., & Johnson, R. F. (1989). Lucian Freud: Works on paper. Thames and Hudson.

Citazione stile Chigago Style (17a edizione)

Penny, Nicholas, e Robert Flynn Johnson. Lucian Freud: Works on Paper. London: Thames and Hudson, 1989.

Citatione MLA (8a ed.)

Penny, Nicholas, e Robert Flynn Johnson. Lucian Freud: Works on Paper. Thames and Hudson, 1989.