APA

Nio Y. K., Jansonius N. M., Fidler V., Geraghty E., Norrby S. & Kooijman A. C. (20000914). Age-related changes of defocus-specific contrast sensitivity in healthy subjects. : Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists).

Chicago

Nio Y K, Jansonius N M, Fidler V, Geraghty E, Norrby S and Kooijman A C. 20000914. Age-related changes of defocus-specific contrast sensitivity in healthy subjects. : Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists).

Harvard

Nio Y. K., Jansonius N. M., Fidler V., Geraghty E., Norrby S. and Kooijman A. C. (20000914). Age-related changes of defocus-specific contrast sensitivity in healthy subjects. : Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists).

MLA

Nio Y K, Jansonius N M, Fidler V, Geraghty E, Norrby S and Kooijman A C. Age-related changes of defocus-specific contrast sensitivity in healthy subjects. : Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists). 20000914.