000 00325nam a2200121Ia 4500
008 211209s1977 xx 000 0 und d
041 _aeng
082 _a621.31913 N77 NAI/MAL
100 _aNAIDU M S
245 _aSF6 AND VACUUM INSULATION FOR HIGH VOLTAGE APPLICATIONS
260 _bKHANNA PUBLISHERS
_c1977
300 _a256
999 _c19589
_d19589