TY  - BOOK
AU  - Langsdorf, Alexander S.
TI  - Principles of direct-current machines
U1  - 621.3132 
PY  - 1959///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - Direct-current Machines
N1  - Includes appendices ; bibliograhy ; glossary & index
ER  -