Actividad minera.
- Mensual.
1984 v. (5,7-9) ; 1985 v. (10-18) ; 1986 v. (19-20) ; 1987 v. (27-30) ; 1988 v. (31-34) ; 1989 v. 37 ,(40) ; 1992 v. (3) 1993 (3) ; 1994 v. (3).
0326-6672.
Minas/
Geologia.
1984 v. (5,7-9) ; 1985 v. (10-18) ; 1986 v. (19-20) ; 1987 v. (27-30) ; 1988 v. (31-34) ; 1989 v. 37 ,(40) ; 1992 v. (3) 1993 (3) ; 1994 v. (3).
0326-6672.
Minas/
Geologia.
