Soil taxonomy; a basic system of soil clasification for making and interpreting soil suveys soil survey staff 
Departamento of Agriculture 
 - 754p.; 28 cm. 
<br/><br/> BIBLIOTECA: UACH-FACIATEC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos<br/>Clasificación--suelos<br/>Taxonomía--suelos
<br/><br/><label>Dewey Class. No.: </label>631.44  / UNI 1975