Ball, J. M. (1927). Modern ophthalmology: A practical treatise on the anatomy, physiology, and diseases of the eye (6th ed., rev. and enl.). F. A. Davis company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBall, James Moores. Modern Ophthalmology: A Practical Treatise on the Anatomy, Physiology, and Diseases of the Eye. 6th ed., rev. and enl. Philadelphia: F. A. Davis company, 1927.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBall, James Moores. Modern Ophthalmology: A Practical Treatise on the Anatomy, Physiology, and Diseases of the Eye. 6th ed., rev. and enl. F. A. Davis company, 1927.
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