Worthen, Edmund Louis,  1882- <br/><br/>
Farm soils :  their management and tertilization / 
by Edmund L. Worthen 
 - 4th ed. 
 - New York :  John Wiley ,  1951 
 - xiii 510 p. :  ill ;  20 cm. 
<br/><br/><label>ISBN: </label> Rs. 3.72 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizers<br/>Soils