000 002750000a22001450004500
003 BGCL
020 _c7.00
040 _aBGCL
082 _a530
_bphy 82.2
245 _aOptics
_cby D.P.Acharya
650 _aPHY.
041 _aeng
700 _aAcharya, D.P.
942 _cBOOK
999 _c10373
_d10373