Não informado. (1963). Studies in Family Planning. Population Council.
Lua i Stíl Chicago (17ú heag.)Não informado. Studies in Family Planning. New York: Population Council, 1963.
Lua MLA (8ú heag.)Não informado. Studies in Family Planning. Population Council, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.