000 00377nam a2200157Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a621.32
_bH843
100 _aHoustoun R A
245 _aStudies in light production
260 _aLondon
_bThe Electrician
300 _a139p.
650 _aElectric lighting
942 _cBK
999 _c27889
_d27889