TY  - BOOK
ED  - Seminar on the Copper Production in Developing Countries (1970 : Moscow)
TI  - Report
U1  - "X9(F113)p1(X),N7, L2" 
PY  - 1962///
CY  - New
PB  - York United Nations USA    
KW  - Technological Industry
N1  - Sales No.:E.72.11.B.13
ER  -