TY  - BOOK
AU  - Gregory,John Martin
TI  - Alternating currents
T2  - Methuen studies in science
SN  - 0423842706
U1  - 537.63 
PY  - 1971///
CY  - London
PB  - Methuen Educational
KW  - Electric currents, Alternating
N1  - Distributed in the U.S.A. by Barnes and Noble; Includes index; Bibliography: p. 63
ER  -