Tisdale, Samuel L. Werner, L. N. <br/><br/>
Soil fertility and fertilizers 
/by Samuel L. Tisdale, Werner L. Nelson 
 - 3rd ed. 
 - New York  Macmillan pub.  1975 
 - 694 pages. 
<br/><br/> Includes appendix and index. 
<br/><br/><label>Dewey Class. No.: </label>631.42  / TIS