2448-7678 2448-7678 S2448-76782008000100077 00 06 2008 00 06 2008 37 101 77 89

1994 1977 1955 Second 1986 1977 Segunda 1992 2006 1988 34 6 6 Instituto Mexicano del Petróleo 2006 1986 1992 2001 1996 II 9 9 2-8 2005 17-27 2001 IV 26 26 19-25 2003 Palisade Corporation 2001