Documentation-International code for the abbreviation of titles of periodicals 

 - (s.l.) :  ISO,  1972 
 - (6 h) 
 - ISO  ; 4 .
 - ISO  ; 4 .
<br/><br/><label>LCCN: </label>26012 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Publicaciones periódicas--Abreviaturas.