Kolker, A. E., & Hetherington, J. (1983). Becker - Shaffer's; Diagnosis and Therapy of The Glaucomas.
Lua i Stíl Chicago (17ú heag.)Kolker, Allan E., agus Jhon Hetherington. Becker - Shaffer's; Diagnosis and Therapy of The Glaucomas. 1983.
Lua MLA (9ú heag.)Kolker, Allan E., agus Jhon Hetherington. Becker - Shaffer's; Diagnosis and Therapy of The Glaucomas. 1983.
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