000 00312nam a22001097a 4500
008 230724b |||||||| |||| 00| 0 eng d
022 _a0260-7840
040 _aNational Science Library
_cNational Science Library
245 _aModern power systems
260 _aLondon:
_bUnited Trade Press Limited,
942 _cCR
999 _c54724
_d54724