TY  - BOOK
AU  - Barr,James R.
AU  - Bolton,D.J.
TI  - Principles of direct - current electrical engineering
U1  - 621.3132 
PY  - 1956///
CY  - London
PB  - Isaac Pitman
KW  - Electric engineering
KW  - Electric currents, direct
KW  - Electric motors
KW  - Testing
KW  - Electric machinery
KW  - Direct current
N1  - Includes index
ER  -