0256-7024 0256-7024 S0256-70242018000100007 10.15517/rgac.v58i0.32669 USA Costa Rica Costa Rica Costa Rica 00 06 2018 00 06 2018 58 7 36

1998 2001 29 2 2 127-30 2017 2009 a 40 111-22 2009 b 40 98-107 2012 46 6-122 2015 1990 2001 1976 8 502-12 1991 12 75-82 1978 xx 6 6 955-9 1982 28 71-86 1977 1988 8 111-21 1987 Cities Service Minerals 1977 Compañía Petrolera de Costa Rica Departamento de Exploración 1960 1995 33-55 1962 133161 1980 1991 12 1-59 2007 2013 1995 295 875-919 1978 1965 49 4 4 433-44 2004 23 1874 37 103-18 2005 32 13-31 2009 2011 121 171-34 2015 1998 2002 348 187-204 2008 451 1094-7 1991 1995 235-62 1987 7 83-111 2009 2004 392 325-48 2001 24 29-56 1979 2015 2004 30 31-9 2009 41 123-36 OEA 1977 ONU 1975 1985 2 23-32 1912 68 103-39 1978 Mao 2002 2007 26 1984 1984 1997 2010 1993 1957 1987