Cox, Joseph F.  <br/><br/>
Crop management and soil conservation / 
Joseph F. Cox and Lyman E. Jackson. 
 - 2nd ed. 
 - London :  John Wiley,  c 1948. 
 - xxii, 572 p. :  ill. ;  20 cm. 
 - War Departmant education manual, 858. .
<br/><br/> Includes index. 
<br/><br/>344  344 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Techniques, equipment, materials.
<br/><br/><label>Dewey Class. No.: </label>631.4 / C839c