International yearbook of Agricultural statistics 1927-28. 

 - Rome  International Institute of agriculture         1928 
 - xxxii; 557p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9(J): (B28)n.1.N28 - N27, F8