Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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