000 00249nam a2200073 4500
080 _a
_b
245 _aIS: 7678 - 1975; Method of photometric testing of incadescent type luminaires for general lighting service
700 _aBureau of Indian Standards
260 _aNew Delhi
_bBIS
_c1975
300 _a12p
999 _c33742
_d33742