Informe 1966.  Informe general, 1951-1966. 

 - [Caracas,  1967] 
 - [48] p.  illus.  26 cm. 
<br/><br/> Cover title. 
<br/><br/><label>LCCN: </label>68081993  
<br/><br/><label>LC Class. No.: </label>HV232  / .F836