HAUSER,G.F. <br/><br/>
The Calibration of Soil Tests for Fertilizer Recommendations 

 - Rome  FAO of the United Nations  1973 
 - (vii),71p. 
<br/><br/><label>ISBN: </label>9251002584 
<br/><br/><label>Dewey Class. No.: </label>631.8