0034-7744 0034-7744 S0034-77442018000200848 10.15517/rbt.v66i2.33418 Mexico Mexico Mexico Mexico 00 06 2018 00 06 2018 66 2 848 862

1970 1974 1976 1999 1963 1991 1 15 2003 72 20-30 Diario Oficial 2010 1993 229-51 1995 2004 2007 31 369-77 2015 1 63-80 2017 2017 1-16 INEGI 1995 1895 5 377-514 1966 4 773-802 2005 1951 4 11-21. 2002 47 1720-34 2013 1999 98 131-6 2003 12 143-55 2014 375-99 2003 281-328 1964 84-121 2002 423-9 2002 69-79 1996 7 1-18 1980 Nueva York 465-82