TY  - GEN
AU  - Khanna, O. P. 
TI  - A Textbook of Welding Technology
U1  - 671.52 22th Ed.
PY  - 2009///
CY  - New Delhi
PB  - Dhanpat Rai Publications (P) Ltd.
KW  - MECH
KW  - M-25
ER  -