Douglas, S., & Durham, S. (1988). Anorectal malformations in children update 1988.
Lua i Stíl Chicago (17ú heag.)Douglas, Stephens, agus Smith Durham. Anorectal Malformations in Children Update 1988. 1988.
Lua MLA (9ú heag.)Douglas, Stephens, agus Smith Durham. Anorectal Malformations in Children Update 1988. 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.