Heafford, Philip E.
Electric currents / Philip E. Heafford ; edited by Charles H. Dobinson. - London : Longmans, 1956. - 80 p. : ill. ; 22 cm. - Science on the March unight Eight .
310 310
Electrical engineering.
621.31 / H346e
Electric currents / Philip E. Heafford ; edited by Charles H. Dobinson. - London : Longmans, 1956. - 80 p. : ill. ; 22 cm. - Science on the March unight Eight .
310 310
Electrical engineering.
621.31 / H346e