Não informado. (1981). Progress in Obstetrics and Gynaecology. Churchill Livingstone.
Lua i Stíl Chicago (17ú heag.)Não informado. Progress in Obstetrics and Gynaecology. New York: Churchill Livingstone, 1981.
Lua MLA (8ú heag.)Não informado. Progress in Obstetrics and Gynaecology. Churchill Livingstone, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.