Statistical yearbook  thirthy-ninth issues.  [Disco compacto] : 

 - cd-rom version. 
 - 1 CD-ROM 
<br/><br/><label>ISBN: </label>9211613744 
<br/><br/><label>ISSN: </label>1020-1114 
<br/><br/><label>Dewey Class. No.: </label>310  / U58s 1995