Jones, J. Benton, Jr. <br/><br/>
Manual soil testing procedure using modified (Wolf) Morgan extracting reagent 

 - Athens, Ga, :  Benton Laboratories,  1984 
 - 62 p.  ; ilus. ; gráfs. 
<br/><br/><label>LCCN: </label>69759 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Suelos--Análisis.<br/>Suelos--Elementos minerales.
<br/><br/><label>Dewey Class. No.: </label>631.42  / J62