000 00319nam a2200145Ia 4500
100 _aAbram, David
080 _a617.755 Duk
526 _dNTB
526 _aUG
942 _cBK
245 _aDuke-elder's practice of refraction
260 _aButterworth-heinemann
_bNew Delhi
_c2012
300 _avii,301
546 _aE
999 _c72905
_d72905