Não informado. Puerto Rico Journal of Public Health and Tropical Medicine. Department of Health of Puerto Rico.
Lua i Stíl Chicago (17ú heag.)Não informado. Puerto Rico Journal of Public Health and Tropical Medicine. San Juan: Department of Health of Puerto Rico.
Lua MLA (8ú heag.)Não informado. Puerto Rico Journal of Public Health and Tropical Medicine. Department of Health of Puerto Rico.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.