Patten, B. M. (1946). Human embryology.
Lua i Stíl Chicago (17ú heag.)Patten, Bradley M. Human Embryology. 1946.
Lua MLA (9ú heag.)Patten, Bradley M. Human Embryology. 1946.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.