FAO FERTILIZER YEARBOOK ANNUAIRE FAO DES ENGRAIS ANUARIO FAO DE FERTILIZANTES VOL.29 

 - ROME   FAO  1980 
<br/><br/><label>ISBN: </label>92-5-000942-9 
<br/><br/><label>LC Class. No.: </label>631.8100212/FAO  / 1 
<br/><br/><label>Dewey Class. No.: </label>631.8100212/FAO  / 1