TY  - BOOK
AU  - Hubert,Charles I.
TI  - Preventive maintenance of electrical equipment / 
SN  - 0730839X
U1  - 621.317 
PY  - 1969///
CY  - New York
PB  - McGraw-Hill Book Company , 
KW  - Electric engineering
KW  -  Electric apparatus and appliances
N1  - Include appendix and index
ER  -