Nyhus, L. M. (1987). Controversies in colon cancer: Problems in general surgery. Mcallister.
Lua i Stíl Chicago (17ú heag.)Nyhus, Lloyd M^redt. Controversies in Colon Cancer: Problems in General Surgery. Philadelphia: Mcallister, 1987.
Lua MLA (9ú heag.)Nyhus, Lloyd M^redt. Controversies in Colon Cancer: Problems in General Surgery. Mcallister, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.