Hartridge, G. (1898). The refraction of the eye: A manual for students (9th ed.). J. & A. Churchill.
Chicago Style (17. basım) AtıfHartridge, Gustavus. The Refraction of the Eye: A Manual for Students. 9th ed. London: J. & A. Churchill, 1898.
MLA (8th ed.) AtıfHartridge, Gustavus. The Refraction of the Eye: A Manual for Students. 9th ed. J. & A. Churchill, 1898.
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