Reader's digest Association. (1992). The good health fact book. Reader's digest association.
Lua i Stíl Chicago (17ú heag.)Reader's digest Association. The Good Health Fact Book. New York: Reader's digest association, 1992.
Lua MLA (9ú heag.)Reader's digest Association. The Good Health Fact Book. Reader's digest association, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.