Não informado. (1982). Graefe's Archive for Clinical and Experimental Ophthalmology. Springer Verlag.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Graefe's Archive for Clinical and Experimental Ophthalmology. Berlin: Springer Verlag, 1982.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Graefe's Archive for Clinical and Experimental Ophthalmology. Springer Verlag, 1982.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.