TY  - BOOK
AU  - Roberts,E.R.
TI  - The Extraction Of Non-Ferrous Metals
U1  - 669 23
PY  - 1950///
CY  - LOndon
PB  - Temple Press Limited
KW  - Nonferrous metals
KW  - Metallurgy
N1  - Includes indexs (p.: 171 - 181 )
ER  -