000 00379cam a2200157ua 4500
041 _aeng
_h
082 _a671.5212
_bSOM/EL
100 _aSomerville, J.M .
245 _aElectric arc /
_cJ.M.Somerville.
_hTextual Documents
250 _a1 /
_b.
260 _aLondon :
_bMethuen and Co. Ltd ,
_c1959.
300 _a150 ; .
504 _a
942 _cBK
999 _c2459
_d2459