TY  - BOOK
ED  - Commonwealth mining and metallurgical congress
TI  - Proceedings of the minth Commonwealth mining and metallurgical congress 1969
PY  - 1970///
CY  - London
PB  - The institution of mining and metallurgy
KW  - Minería
KW  - lemb
KW  - Libro
KW  - unescot
N1  - La Biblioteca posee solo V.2; V.2:Petroleum geology
ER  -