TY  - BOOK
AU  - Smith, Mckenzi, I Hiley, John. & Brown, Keith 
TI  - Hughes: electrical and electronic technology 
SN  - 81-7808-798-7 
U1  - 621.3 SMI  
PY  - 2006///
CY  - Pearson education asia 
PB  - Delhi 
KW  - ELECTRICAL SCIENCE
ER  -