TY  - SER
ED  - American Institute of Mining and Metallurgical Engineers
TI  - Mining Engineering
PY  - 1949///-
CY  - New York
PB  - American Institute of Mining and Metallurgical Engineers
KW  - ExplotaciÃ³n
KW  - MinerÃ­a
N1  - DepÃ³sito
ER  -