TY  - BOOK
AU  - Sethi, G S  .
AU  - Kakkar,Kuldip  .
TI  - Workshop science / 
SN  - 0  07  451963  4
U1  - 621.901 
PY  - 1982///
CY  - New Delhi : 
PB  - Tata Mc-Graw Hill Publishing Company , 
ER  -