Não informado. (1969). Annals of Ophthalmology. American Society of Contemporary Ophthalmology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Annals of Ophthalmology. Ridgefield, Conn: American Society of Contemporary Ophthalmology, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Annals of Ophthalmology. American Society of Contemporary Ophthalmology, 1969.
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