1870-199X 1870-199X S1870-199X2006000300131 10.22201/fo.1870199xp.2006.10.3.15901 Mexico Mexico Mexico Mexico 00 00 2006 00 00 2006 10 3 131 137

1 1956 9 1239 2 1957 41 745 3 1963 1055 4 1966 38 123 5 1972 49 537 6 1972 25 93 7 1973 10 192 8 1993 91 5 5 806 9 1989 18 5 5 291 10 1988 46 5 5 412 11 2000 2 2 2 146 12 1991 87 6 6 1041 13 2002 553 14 Getz 5B Jr 1987 45 11 11 907 15 1982 40 12 12 787 16 1992 21 1 1 3 17 1997 100 3 3 582 18 1992 21 1 1 6 19 2001 38 5 5 432 20 1998 56 6 6 716 21 1982 40 10 10 670 22 1997 99 6 6 1535