TY  - BOOK
AU  - Bornatsky, I  .
AU  - Kotrovsky,M  .
AU  - Yargin,Y  .
TI  - Open hearth practice: a hand book / 
U1  - 542.4 
PY  - 1961///
CY  - Moscow : 
PB  - Foreign Language Publishing House , 
ER  -