Quirino, E. Public health.
Lua i Stíl Chicago (17ú heag.)Quirino, Elpidio. Public Health.
Lua MLA (9ú heag.)Quirino, Elpidio. Public Health.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)