Classification : Class A: general works; polygraphy. 

 - 3 Supplementary Pages. Reprin 
 - Washington :  S.N.,  1963. 
 - 47 p. 
<br/><br/> "ADDITIONS AND CHANGES TO OCTOBER 1962" 7 P. AL FINAL.  Monografía 
<br/><br/><label>Subjects--Index Terms: </label>Clasificación - Libros - Obras Generales 
<br/><br/><label>LC Class. No.: </label>C/Z696.E7/A1963