TY  - BOOK
AU  - Barr,James Robertson[from old catalog]
AU  - Boulton,Douglas Joseph,[from old catalog]
TI  - Principles of direct-current electrical engineering,
U1  - 621.31912 
PY  - 1943///
CY  - London
PB  - I. Pitman
KW  - Electrical engineering
KW  - Electric machinery
KW  - Direct current. [from old catalog]
KW  - MCE
ER  -