TY  - BOOK
AU  - Kloeffler, Royce G, et al
AU  - Brenneman, Jesse L
AU  - Kerchner, Russell M
TI  - Direct-Current Machinery
T2  - Engineering science Series
U1  - 621.3132 
PY  - 1934///
CY  - New york
PB  - Macmillan Company
ER  -