Não informado. (1920). Journal of Radiology. Radiological Society of North America.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Radiology. Omaha, Neb: Radiological Society of North America, 1920.
Lua MLA (8ú heag.)Não informado. Journal of Radiology. Radiological Society of North America, 1920.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.