Wallace, R. B. D. (1998). Public health & preventive medicine. Prentice- Hall International INC.
Lua i Stíl Chicago (17ú heag.)Wallace, Robert B. Doebbeling. Public Health & Preventive Medicine. USA: Prentice- Hall International INC, 1998.
Lua MLA (8ú heag.)Wallace, Robert B. Doebbeling. Public Health & Preventive Medicine. Prentice- Hall International INC, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.