Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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