2395-9185 2395-9185 S2395-91852016000200076 10.24201/eg.v2i4.60 Mexico 00 12 2016 00 12 2016 2 4 76 102

2004 12 2 2 224-35 2015 2005 2006 27 108 108 29-83 2005 13 3 3 387-96 2006 8 2 2 87-108 2008 1991 4 12 12 125-50 2015 5-8 de agosto de 2015 Rio Grande, Brasil 2001 14 14 126-58 2006 2008 INEGI 2015 3 7 7 189-214 2000 12 12 74-111 2005 6 2 2 1990 1996 2001 9-17 2011 2006 9 17 17 376-90