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1983 1972 6 1 1 1-39 1975 10 10 1977 2001 CEPAL BID FAO Rimisp 2004 Conapo 2000 Conapo 2001 Conapo 2002 2002 1999 66 4 4 725-61 2002 2006 17 a 19 de mayo Oaxtepec, Morelos 1979 13 4 4 467-99 2003 2008 1988 2000 15 3 3 489-532 2000 2000 1990 5 1 1 5-35 2001 2004 1986