TY  - BOOK
AU  - 
TI  - The Extraction Of Metals
U1  - 669 WHI 
PY  - 1968///
CY  - London
PB  - Macmillan
KW  - Metallurgy
N1  - Includes bibliographical references ( p.: 87 ), indexs (p.: 89 - 91 )
ER  -