Pearson, Lorentz C. <br/><br/>
Principles of agronomy  Lorentz C. Pearson. 

 - New York  Reinhold  1967 
 - xv, 433p., illus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agronomy Agriculture Soil managment.
<br/><br/><label>Dewey Class. No.: </label>631,  / P30P