(1972). Paul Rudolf Drawing. Edita.
Lua i Stíl Chicago (17ú heag.)Paul Rudolf Drawing. Edita, 1972.
Lua MLA (8ú heag.)Paul Rudolf Drawing. Edita, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)