Memoria. 

 - Caracas 
<br/><br/> 1961 - no. 58 January/March ; no. 59 May/August ; no. 60 September  1962 - no. 63 September  1964 - Vol. 24, no. 67 January/April 
<br/><br/><label>Dewey Class. No.: </label>S736