Simpson, Ken <br/><br/>
Fertilizers and manures 

 - London  ; Longman  , 1986 
 - 254p. 
<br/><br/><label>ISBN: </label>058244747X  £10.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural Chemicals<br/>Fertilizers
<br/><br/><label>Dewey Class. No.: </label>631.8  / SIM