Paton, D. (1985). Introduction to ophthalmoscopy. Upjohn.
Lua i Stíl Chicago (17ú heag.)Paton, David. Introduction to Ophthalmoscopy. Michigan: Upjohn, 1985.
Lua MLA (9ú heag.)Paton, David. Introduction to Ophthalmoscopy. Upjohn, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.