000 00286nam a2200085Ia 4500
008 180131b1974 xxu||||| |||| 00| 0 eng d
080 _a
_b
100 _aIndian Standards Institution
245 _aIs:01885 (Part Iv/Sec 8) - 1973; Electrotechnical Vocabulary Part 4 Electron Tubes Section 8 Photose
260 _a
_bBIS
_c1974
999 _c49789
_d49789