Seaton, A. (1989). Crofton and Douglas's Respiratory Diseases.
Lua i Stíl Chicago (17ú heag.)Seaton, Anthony. Crofton and Douglas's Respiratory Diseases. 1989.
Lua MLA (9ú heag.)Seaton, Anthony. Crofton and Douglas's Respiratory Diseases. 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.