0185-2620 0185-2620 S0185-26202006000100057 México 00 06 2006 00 06 2006 31 57 81

1995 1975 1981 2000 1976 1981 1997 1981 1992 I 1992 1986 2000 2001 2005 3 3 1988 I 1972 2004 1998 1991 1986 2001 1990 1984 1956