000 00249nam a2200121Ia 4500
080 _aP617.705/I.O
526 _dNTB
526 _aUG
942 _cBK
245 _aIndian Optician Vol. 44 (250 – 251) Jan – April
260 _c2012
546 _aE
999 _c73292
_d73292