0187-5779 0187-5779 S0187-57792017000200101 Mexico Mexico 00 06 2017 00 06 2017 35 2 101 111

2015 128 122‑134 1976 1497 1973 GEM (Gobierno del Estado de México) 1993 1980 210 499-505 1984 54 103-16 IUSS Working Group WRB (International Union of Soil Sciences-World Reference Base for Soil Resources) 2015 106 106 2011 37 145-62 2005 38 s89-94 1963 1994 59 170-9 1985 50 166-73 1990 22 70-86 2012 265 90-100 2003 1972 62 618-26 1980 21 51-62 1981 233-6 1989 54 715-32 1991 187-208 1992 10 483-93 2006 17-41 1981 71 335-58 1988 53 337-51 1997 2014 147-64 2008 320 72-7 1968