Norton, A. B., & Allen, T. F. (1892). Ophthalmic diseases and therapeutics. Boericke & Tafel.
Lua i Stíl Chicago (17ú heag.)Norton, A. B., agus Timothy Field Allen. Ophthalmic Diseases and Therapeutics. Philadelphia: Boericke & Tafel, 1892.
Lua MLA (8ú heag.)Norton, A. B., agus Timothy Field Allen. Ophthalmic Diseases and Therapeutics. Boericke & Tafel, 1892.
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