Final report and working papers 

 - Washington :  OEA,  1970 
 - 2v 
<br/><br/> La biblioteca tiene: v.2 
<br/><br/><label>LCCN: </label>54543 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adquisiciones (Bibliotecas)
<br/><br/><label>Dewey Class. No.: </label>025.2  / S45 1969