FAO Fertilizer Yearbook, 1983 

 - Rome  Food and agriculture organization of the UN      1984 
 - 33v; ov; 143p.  cm. 
 - FAO Statistics Series. no.56 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9(J):24n.1 N45 - N86, M3.33/UN