TY  - BOOK
AU  - ,  .
ED  - Director general of employment and training, New Delhi.                                                                                                                                                                                                        . 
TI  - Welding : theory and practies / 
U1  - 671.52 
PY  - 1985///
CY  - New Delhi : 
PB  - Tata Mc-Graw Hill Publishing Company , 
ER  -