Superphosphate ; its history, chemistry and manufacture 

 - Washington :  A.R.S.,  1964 
 - 349 p.  : ilus. 
<br/><br/> Incluye bibliografía 
<br/><br/><label>LCCN: </label>39529 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizantes fosfatados.
<br/><br/><label>Dewey Class. No.: </label>668.62  / E83