_:b11895 . "Guidelines for Soil Description issued by the FAO: table 6"@en . _:b11891 _:b11887 . _:b11890 . _:b11895 . _:b11894 . _:b11895 . _:b11887 _:b11892 . _:b11894 . _:b11894 . _:b11895 . _:b11892 . _:b11890 _:b11891 . _:b11887 . _:b11892 . . "SlopeForm"@en . _:b11890 . _:b11890 . . _:b11894 .