Wilhelm, L. (1978). Richard's brother: By Lambert Wilhelm. Arena.
Lua i Stíl Chicago (17ú heag.)Wilhelm, Lambert. Richard's Brother: By Lambert Wilhelm. North Hollywood, Calif.: Arena, 1978.
Lua MLA (8ú heag.)Wilhelm, Lambert. Richard's Brother: By Lambert Wilhelm. Arena, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.