Royal Academy of Arts, Luckhardt, U., & Melia, P. (1995). David Hockney: A drawing retrospective / Ulrich Luckhardt and Paul Melia. Thames and Hudson.
Lua i Stíl Chicago (17ú heag.)Royal Academy of Arts, Ulrich Luckhardt, agus Paul Melia. David Hockney: A Drawing Retrospective / Ulrich Luckhardt and Paul Melia. London: Thames and Hudson, 1995.
Lua MLA (8ú heag.)Royal Academy of Arts, et al. David Hockney: A Drawing Retrospective / Ulrich Luckhardt and Paul Melia. Thames and Hudson, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.