Follett,Roy H. Murphy, Larry S. Donahue, Roy L. <br/><br/>
Fertilizers and soil amendments 
/Roy H. Follett, Larry S. Murphy, Roy L. Donahue 
 - New Jersey  Prentice-hall  1981 
 - xv, 557 p. 
<br/><br/><label>ISBN: </label>133143368 
<br/><br/><label>Dewey Class. No.: </label>631.8  / FOL