Hilliard, J. (1979). Triaden: John Hilliard. Kunstforum.
Lua i Stíl Chicago (17ú heag.)Hilliard, John. "Triaden: John Hilliard." Kunstforum 1979.
Lua MLA (8ú heag.)Hilliard, John. "Triaden: John Hilliard." Kunstforum, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.