00961nam a2200289 i 450099100086923970753620020507102539.0960328s1967 uk ||| | eng b10141054-39ule_instLE00638281ExLDip.to Fisicaita53.7.853.8.3537'.21QC571Harper, W.R.461484Contact and frictional electrification /W.R. HarperOxford :Oxford University Press,1967xii, 369 p., tables :ill. ;23 cm.ElectrostaticsSolids.b1014105421-09-0627-06-02991000869239707536LE006 53.7.8+53.8.3 HAR12006000058438le006-E0.00-l- 00000.i1016737727-06-02Contact and frictional electrification186681UNISALENTOle00601-01-96ma -enguk 01