Mackenzie, Brian W.
Economic of gold deposits - London Chapman & Hall 1993 - pp. 399-426 ilus., tbls.
ECONOMIA MINERA
EVALUACION DE YACIMIENTOS
ORO
553.411/F77|5
Economic of gold deposits - London Chapman & Hall 1993 - pp. 399-426 ilus., tbls.
ECONOMIA MINERA
EVALUACION DE YACIMIENTOS
ORO
553.411/F77|5