TY  - BOOK
AU  - Hopwood,H.[from old catalog]
TI  - Alternating-current motor windings: covering the design and manufacture of windings for all types of A.C. motors, frequency changers, boosters, and convertors 
U1  - 621.3744 21
PY  - 1950///
CY  - London
PB  - Newnes
KW  - Armatures
N1  - Includes index
ER  -