000			00312nam a2200133Ia 4500
100			_aLens, Al
020			_a1-55642-748-4
250			_a2nd ed.
942			_cBK
245			_aOptics, retinoscopy, and refractometry
260			_aSlack Incorporated, Vancouver _c2006
082			_a617.755 Len
300			_avii,130
999			_c45073 _d45073