000 00309nam a22001217a 4500
008 240520b |||||||| |||| 00| 0 eng d
050 _aQC571
_b.H37
100 _aHarper W.R
245 _aContact and Enctional Electrification
260 _aLondon
_bOxford University Press.
_c1967
300 _a369p
942 _cBK
999 _c661
_d661