000 00232nam a2200085 4500
080 _a621.3
_bPER.71
245 _aPrinciples of electrical science in SI units. Vol. 1
100 _aPerkins, G.D
260 _aLondon
_bEnglish Univ.Press Ltd.
_c1971
300 _avi+202p
999 _c30655
_d30655