1405-9436 1405-9436 S1405-94362007000100007 Mexico 00 00 2007 00 00 2007 3 25 7 42

2003 2003 38 3 3 199-212 1966 399-409 2005 30 4 4 1994 1998 1983 2001 1996 2000 1995 1993 2000 1994 1996 1972 2001 1994 2001 1984 2001 1998 29 4 4 725-50 2004 1994 1991 1979 3-27 1995 2001 1993 1999 2000 2000 SEDESOL 2000 1994 1960 1995 1984 1998 I 1994 2000 11 11 2000 Guadalajara 2004 2004 1999 1982 1997 2004 1985 1997