2007-4018 2007-4018 S2007-40182007000100067 Mexico 00 06 2007 00 06 2007 13 1 67 83

1994 75 123-33 1990 1994 408 1996 67 226-35 1992 22 144-60 1996 263 1974 44 255-77 1995 5 336-52 1995 5 74-86 1999 45 3 3 366-73 1994 368 838-40 1994 8 27-38 1994 9 237-48 INSTITUTO DE GEOGRAFÍA 2002 1997 2nd 411 1997 641 2005 51 28-38 1981 3 153-68 1990 467 1983 10 242 1991 231 1978 432 SEMARNAT 2002 1993 210 1992 2 267-74 1983 1975 25 376-81 1995 9 439-49 1991 1990 36 367-80 1994 75 2333-47 1992 6 221-31