Não informado. (2000). University of California publications in public health. University of California.
Lua i Stíl Chicago (17ú heag.)Não informado. University of California Publications in Public Health. Berkeley, Calif: University of California, 2000.
Lua MLA (8ú heag.)Não informado. University of California Publications in Public Health. University of California, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.