Fertilizer yearbook 

 - Rome  FAO         1988 
 - 123p  cm. 
<br/><br/> "(FAO Statistics series, 83)" 
<br/><br/><label>Standard No.: </label>159608 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X9(J:24) n1N45,N50, M7.37"