Hebert, J. <br/><br/>
Current trends in the use of chemical fertilizers in France for major crops, with due regard for soil fertility. 

 - (s.l. ; s.e.),  1979. 
 - s.p. 
<br/><br/><label>LCCN: </label>12930 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Francia.<br/>Fertilizantes.