Não informado. (1969). The Year book of neurology and neurosurgery. Year Book Medical Publishers.
Lua i Stíl Chicago (17ú heag.)Não informado. The Year Book of Neurology and Neurosurgery. Chicago, Ill: Year Book Medical Publishers, 1969.
Lua MLA (8ú heag.)Não informado. The Year Book of Neurology and Neurosurgery. Year Book Medical Publishers, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.