TY  - BOOK
AU  - Appold, Hans  .
AU  - Feiler,Hurt  .
AU  - Reinhald,Alfred  .
AU  - Schmidt,Paul  .
TI  - Technology of the metal trade / 
U1  - 671 
PY  - 1982///
CY  - New Delhi : 
PB  - Wiley Eastern Ltd , 
ER  -