APA (7e ed.) Bronvermelding

Hartridge, G. (1898). The refraction of the eye: A manual for students (9th ed.). J. & A. Churchill.

Chicago (17e ed.) Bronvermelding

Hartridge, Gustavus. The Refraction of the Eye: A Manual for Students. 9th ed. London: J. & A. Churchill, 1898.

MLA (8e ed.) Bronvermelding

Hartridge, Gustavus. The Refraction of the Eye: A Manual for Students. 9th ed. J. & A. Churchill, 1898.