Jewell, D. (1975). Ulcerative colitis.
Lua i Stíl Chicago (17ú heag.)Jewell, D. Ulcerative Colitis. 1975.
Lua MLA (9ú heag.)Jewell, D. Ulcerative Colitis. 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)