Alderson, M. (1983). An Introduction to Epidemiology.
Lua i Stíl Chicago (17ú heag.)Alderson, Michael. An Introduction to Epidemiology. 1983.
Lua MLA (9ú heag.)Alderson, Michael. An Introduction to Epidemiology. 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.