000 00263nam a2200121Ia 4500
100 _aKamal/ Raj/ Sawhney/R.L.
942 _cBK
654 _aLaser optics
245 _aLaser Optics
260 _bWiley eastern
_aNew Delhi
_c1992
546 _aENGLISH
999 _c34917
_d34917