Beral, V. (1993). Mammographic screening.
Lua i Stíl Chicago (17ú heag.)Beral, V. Mammographic Screening. 1993.
Lua MLA (9ú heag.)Beral, V. Mammographic Screening. 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)