Não informado. (1970). Chest. American College of Chest Physicians.
Lua i Stíl Chicago (17ú heag.)Não informado. Chest. Park Ridge, Ill: American College of Chest Physicians, 1970.
Lua MLA (8ú heag.)Não informado. Chest. American College of Chest Physicians, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.