Handbook on reference methods for soil testing 

 - Rev. ed. 
 - Athens, Georgia :  C.S.T.P.A,  1980 
 - 130 p. 
<br/><br/><label>LCCN: </label>30939 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Química vegetal.<br/>Suelos--Análisis.
<br/><br/><label>Dewey Class. No.: </label>631.42  / C68 1980