1405-9436 1405-9436 S1405-94362005000200219 Mexico Mexico Mexico 00 00 2005 00 00 2005 3 22 219 268

2003 9 37 37 2003 1997 1992 61-97 2003 1990 2001 1999 II 1999 97-124 2003 1997 IV 47-77 2002 1999 1999 155-62 2002 1996 3-15 2000 11-45 1999 19-36 INEGI 2000 2000 2005 104 104 2003 23-83 1993 54-75 2001 1999 1994 1997 11-49 1995 299-310