1665-8027 1665-8027 S1665-80272007000200079 10.29043/liminar.v5i2.252 Mexico 00 12 2007 00 12 2007 5 2 79 89

1911 1983 8-63 1990 2000 1952 XII 31-48 1977 2002 1992 2001 1995 1997