000 00404nam a2200157Ia 4500
003 HQRS
005 20180126055530.0
008 170117s2017 xx 000 0 eng d
040 _aHQRS
_beng
_cHQRS
041 _heng
110 _aCGCRI, Kolkata
245 _aReport of the techno-economic committee for optical & ophthalmic glass
260 _aKolkata:
_bCGCRI,
_c1973
365 _bcomp.
942 _cLP
999 _c31782
_d31782