46. Rayney, B.B.; Brooks C.V., The Use of Low Powered Progressive Addition Lenses for Non-Presbyopic Patients, Journal of Behavioral Optometry, Vol 8/1997/Number 3. Pag 65-69.

46. Rayney, B.B.; Brooks C.V., The Use of Low Powered Progressive Addition Lenses for Non-Presbyopic Patients, Journal of Behavioral Optometry, Vol 8/1997/Number 3. Pag 65-69.