Parsons, J. H. (1930). Diseases of the eye (6th ed.). Macmillan.
Lua i Stíl Chicago (17ú heag.)Parsons, John Herbert. Diseases of the Eye. 6th ed. New York: Macmillan, 1930.
Lua MLA (8ú heag.)Parsons, John Herbert. Diseases of the Eye. 6th ed. Macmillan, 1930.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.