Haines, R. (1961). Handbook of human embryology.
Lua i Stíl Chicago (17ú heag.)Haines, R.W. Handbook of Human Embryology. 1961.
Lua MLA (9ú heag.)Haines, R.W. Handbook of Human Embryology. 1961.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.