1405-3195 1405-3195 S1405-31952017000600683 Mexico Mexico Mexico 00 09 2017 00 09 2017 51 6 683 695

2008 163 173-81 2010 2 313-9 1992 30 603-35 1974 Firth 1982 72 379-82 2012 28 1327-50 1999 23-44 2006 34 33-41 1996 2004 26 35-45 1981 465-81 2012 32 44-9 2015 38 183-90 2003 87 4-10 2009 24 14-21 2011 177-215 2002 150 271-6 2006 388 2005 11 273-8 2010 9 92-102 1962 15 473-97 2008 4 15-25 1998 2a 2008 23 67 2017 61 63-79 SAS 2002 Software version 9.0 SIAP. SAGARPA 2014 2007 11 75-9 2013 2013 54-64 2007 37 1-20