World Health Organization. Female sterilization: A guide to provision of service.
Lua i Stíl Chicago (17ú heag.)World Health Organization. Female Sterilization: A Guide to Provision of Service.
Lua MLA (8ú heag.)World Health Organization. Female Sterilization: A Guide to Provision of Service.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.